{"product_id":"organic-chilli-pepper-fertiliser","title":"Chilli \u0026 Pepper Fertiliser | Organic Feed","description":"\u003c!-- Dr Forest — Chilli \u0026 Pepper Fertiliser 3-3.5-7 Product Page --\u003e\n\u003c!-- Prefix: drf-ch- | 6-tab layout --\u003e\n\u003c!-- Pure CSS radio-input tabs. No JavaScript. 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padding-top: 0.8em; border-top: 1px solid var(--drf-border); }\n  .drf-refs ol { padding-left: 1.4em; margin: 0; }\n  .drf-refs li { margin-bottom: 0.3em; }\n  .drf-sep { border: none; border-top: 2px solid var(--drf-gold); margin: 1.5em 0; }\n\n  .drf-wrap table { width: 100%; border-collapse: collapse; margin: 1em 0; font-size: 0.88em; }\n  .drf-wrap table th { background: var(--drf-grn); color: #fff; padding: 0.6em 0.8em; text-align: left; font-weight: 600; font-size: 0.85em; letter-spacing: 0.04em; }\n  .drf-wrap table td { padding: 0.55em 0.8em; border-bottom: 1px solid var(--drf-border); }\n  .drf-wrap table tr:nth-child(even) td { background: var(--drf-grn-light); }\n  .drf-wrap table tr:nth-child(odd) td { background: #fff; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"drf-wrap\"\u003e\n\u003cdiv class=\"drf-tabs-wrap\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-ch-tabset\" id=\"drf-ch-tab1\" checked\u003e\n  \u003cinput type=\"radio\" name=\"drf-ch-tabset\" id=\"drf-ch-tab2\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-ch-tabset\" id=\"drf-ch-tab3\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-ch-tabset\" id=\"drf-ch-tab4\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-ch-tabset\" id=\"drf-ch-tab5\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-ch-tabset\" id=\"drf-ch-tab6\"\u003e\n\n  \u003cdiv class=\"drf-tab-labels\"\u003e\n    \u003clabel for=\"drf-ch-tab1\"\u003eOverview\u003c\/label\u003e\n    \u003clabel for=\"drf-ch-tab2\"\u003eIngredients\u003c\/label\u003e\n    \u003clabel for=\"drf-ch-tab3\"\u003eHow to Use\u003c\/label\u003e\n    \u003clabel for=\"drf-ch-tab4\"\u003eGrowing Guide\u003c\/label\u003e\n    \u003clabel for=\"drf-ch-tab5\"\u003eThe Science\u003c\/label\u003e\n    \u003clabel for=\"drf-ch-tab6\"\u003eFAQ\u003c\/label\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"drf-panels\"\u003e\n\n  \u003c!-- ═══════════ TAB 1 — OVERVIEW ═══════════ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-ch-panel1\"\u003e\n    \u003ch2\u003eChilli \u0026amp; Pepper Fertiliser 3-3.5-7 — designed for heat, flavour and aroma\u003c\/h2\u003e\n    \u003cdiv class=\"drf-badge-row\"\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003e3-3.5-7 NPK\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003e20 Ingredients\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003eCapsaicin \u0026amp; Flavour Led\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003eSlow Release\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003eNo Slaughterhouse Waste\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003eHandmade in the UK\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eMost chilli fertilisers push yield. This one is designed around \u003cstrong\u003eheat and flavour\u003c\/strong\u003e. The 3-3.5-7 NPK ratio — with potassium at more than twice the nitrogen level and phosphorus above nitrogen — drives capsaicin biosynthesis, volatile production and sugar accumulation in developing fruit. \u003cstrong\u003eTwenty ingredients\u003c\/strong\u003e including Yorkshire Polyhalite, Phosphorous Meal, Gypsum, Alfalfa Meal and EM-1 Microorganisms deliver a complete slow-release feed with \u003cstrong\u003e7% calcium\u003c\/strong\u003e to prevent blossom end rot and \u003cstrong\u003e6.4% sulphur\u003c\/strong\u003e from four sources for volatile flavour compound production. Handcrafted in Stockport — no slaughterhouse waste.\u003c\/p\u003e\n    \u003cp\u003eNitrogen is deliberately moderate at 3% — sufficient for healthy canopy without the excess that dilutes capsaicin concentration, suppresses volatile production and produces large, mild fruit. Phosphorus at 3.5% — drives ascorbic acid (vitamin C) production and sugar accumulation — the sweetness and tang that define a properly grown pepper.\u003c\/p\u003e\n\n    \u003cdiv class=\"drf-stats\"\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e3-3.5-7\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eNPK Ratio\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e7%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eCalcium (4 sources)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e6.4%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eSulphur (4 sources)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e2.4:1\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eK:N Ratio\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003ch3\u003eWhat this formula does for your chillies and peppers\u003c\/h3\u003e\n    \u003cul class=\"drf-uses\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003eHotter chillies\u003c\/strong\u003e — moderate nitrogen preserves capsaicin concentration; excess N is the single most common cause of disappointingly mild superhots in home growing\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSweeter, more complex flavour\u003c\/strong\u003e — phosphorus drives ascorbic acid and sugar accumulation; chloride-free potassium drives phloem loading of sugars into developing fruit\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eRicher aroma volatiles\u003c\/strong\u003e — 6.4% sulphur from Yorkshire Polyhalite, SOP, Gypsum and Epsom Salt supports the biosynthesis of esters, aldehydes and terpenoids that define pepper aroma\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eNo blossom end rot\u003c\/strong\u003e — 7% calcium from four sources provides continuous supply that prevents cell wall failure in rapidly expanding fruit\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eLiving soil biology\u003c\/strong\u003e — EM-1 Microorganisms and chitin from Mealworm Frass build the competitive microbial community that suppresses Phytophthora and produces secondary metabolites linked to improved flavour\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eTrace mineral depth\u003c\/strong\u003e — Scottish Seaweed, Volcanic Rock Dust and Clay Minerals supply the enzyme cofactors for capsaicinoid and volatile biosynthesis\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eDr Forest Chilli vs general tomato feed\u003c\/h3\u003e\n    \u003cdiv class=\"drf-compare\"\u003e\n      \u003cdiv class=\"drf-compare-box\"\u003e\n        \u003ch4\u003eDr Forest Chilli \u0026amp; Pepper 3-3.5-7\u003c\/h4\u003e\n        \u003cul\u003e\n          \u003cli\u003e20 ingredients — 7% Ca, 6.4% S, 2.3% Mg and broad trace minerals\u003c\/li\u003e\n          \u003cli\u003ePhosphorus for ascorbic acid and sugar accumulation\u003c\/li\u003e\n          \u003cli\u003eModerate N preserves capsaicin concentration in hot varieties\u003c\/li\u003e\n          \u003cli\u003e6.4% sulphur from four sources for volatile compound production\u003c\/li\u003e\n          \u003cli\u003eMagnesium from three sources — cofactor in capsaicin enzymatic pathway\u003c\/li\u003e\n          \u003cli\u003eApply every 2–4 weeks — not weekly\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"drf-compare-box\"\u003e\n        \u003ch4\u003eGeneral Tomato Feed Used for Chillies\u003c\/h4\u003e\n        \u003cul\u003e\n          \u003cli\u003eDesigned for yield, not heat or flavour complexity\u003c\/li\u003e\n          \u003cli\u003eNo calcium — the nutrient that prevents blossom end rot\u003c\/li\u003e\n          \u003cli\u003eNo sulphur — the element that drives volatile production\u003c\/li\u003e\n          \u003cli\u003eOften high-N — actively suppresses capsaicin biosynthesis\u003c\/li\u003e\n          \u003cli\u003eNo soil biology — soluble salts suppress beneficial organisms\u003c\/li\u003e\n          \u003cli\u003eWeekly dosing with feast-and-famine nutrient cycle\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-callout\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eHandcrafted in Stockport\u003c\/span\u003e\u003cp\u003eDr Forest fertilisers are blended in small batches from traceable British ingredients. Named after Joe's grandfather — an NHS GP who believed in doing things properly. No slaughterhouse waste. No shortcuts.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ═══════════ TAB 2 — INGREDIENTS ═══════════ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-ch-panel2\"\u003e\n    \u003ch2\u003eAll 20 ingredients — what they do and why they are in the formula\u003c\/h2\u003e\n    \u003cp\u003eEvery ingredient is here for a specific, research-backed reason. Nothing is filler. This formula has been optimised for capsaicin biosynthesis and volatile flavour compound production — the chemistry that makes chillies hot and peppers flavourful.\u003c\/p\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e01\u003c\/span\u003e\u003ch4\u003eNitrogen Plant Extract — Plant-derived, controlled release\u003c\/h4\u003e\n\u003cp\u003eThe primary nitrogen carrier at 12% N, making up 20% of the blend. Mineralises over 6–8 weeks without nitrate spikes. For chillies, controlled nitrogen is critical — excess N redirects the plant's phenylalanine pool away from capsaicin synthesis and toward protein production, directly reducing heat.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e02\u003c\/span\u003e\u003ch4\u003eYorkshire Polyhalite — North Yorkshire, slow release 50–60 days\u003c\/h4\u003e\n\u003cp\u003eK, Ca, Mg and S from a single crystal at 16.5% of the blend. The sulphur fraction is particularly important for chillies — it drives volatile biosynthesis through the sulphur-containing amino acid methionine, a precursor to many pepper aroma compounds. Extends K supply for 50–60 days.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e03\u003c\/span\u003e\u003ch4\u003ePhosphorous Meal — Plant-derived, fast-moderate release\u003c\/h4\u003e\n\u003cp\u003eAt 15% P and 9% Ca, making up 15% of the blend — the largest P source. Elevated phosphorus drives ascorbic acid (vitamin C) biosynthesis and sugar accumulation. Also supports root development and flower initiation — chillies set fruit on every node, so continuous flowering support is critical.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e04\u003c\/span\u003e\u003ch4\u003eGypsum (Calcium Sulphate) — Mineral, immediate release\u003c\/h4\u003e\n\u003cp\u003e23% calcium and 18% sulphur in immediately plant-available sulphate form. The largest single calcium source at 9% of the blend. Prevents blossom end rot. The sulphur fraction supports volatile compound production. Delivers Ca without raising soil pH.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e05\u003c\/span\u003e\u003ch4\u003eSulphate of Potash (SOP) — Mineral, immediate release\u003c\/h4\u003e\n\u003cp\u003eFast-acting potassium at 50% K₂O — chloride-free. Activates sugar transport, carotenoid production and volatile biosynthesis immediately. The sulphur anion (18% S) contributes directly to the four-source sulphur profile that distinguishes this formula.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e06\u003c\/span\u003e\u003ch4\u003eAlfalfa Meal — Plant-based, slow release, biostimulant\u003c\/h4\u003e\n\u003cp\u003eContains triacontanol — a natural growth regulator that increases chlorophyll content by 15–20%. Also supplies amino acid precursors for capsaicinoid synthesis. The phenylalanine in decomposing Alfalfa feeds the PAL pathway — the biosynthetic route to capsaicin.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e07\u003c\/span\u003e\u003ch4\u003eEpsom Salt (Magnesium Sulphate) — Mineral, immediate release\u003c\/h4\u003e\n\u003cp\u003e17.7% Mg and 14% S in immediately plant-available form. Magnesium is a cofactor in the capsaicin enzymatic pathway — Mg-deficient chilli plants produce measurably less capsaicin. The fastest-acting Mg source, addressing deficiency within days.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e08\u003c\/span\u003e\u003ch4\u003eScottish Seaweed Meal — Hand-harvested\u003c\/h4\u003e\n\u003cp\u003eOver 60 trace elements. Natural cytokinins delay leaf and fruit senescence — extending the productive season. Particularly valuable for chillies which fruit over a long period from midsummer through to first frost.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e09\u003c\/span\u003e\u003ch4\u003eMagnesium Carbonate — Mineral, moderate release\u003c\/h4\u003e\n\u003cp\u003e20.7% Mg. A secondary magnesium source bridging the gap between Epsom Salt's immediate availability and Yorkshire Polyhalite's sustained release. Three Mg sources maintain uninterrupted chlorophyll production and capsaicin enzyme activity throughout the season.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e10\u003c\/span\u003e\u003ch4\u003eMicronised Rock Phosphate — Mineral, slow reserve\u003c\/h4\u003e\n\u003cp\u003e31% P and 46% Ca. Dissolves slowly as a long-term P and Ca reserve. Handles late-season demand when chillies are still setting and ripening fruit on every node from August through October.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e11\u003c\/span\u003e\u003ch4\u003eHumic Acid \u0026amp; Fulvic Acid — Mineral organic, chelation\u003c\/h4\u003e\n\u003cp\u003eChelates micronutrients, increases soil bacterial biomass by 30–60%, stimulates mycorrhizal colonisation by 25–40%. Research shows 15–30% higher Brix and elevated phenolic compounds in humic acid-treated pepper trials.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e12\u003c\/span\u003e\u003ch4\u003eFermented Biochar — British, activated\u003c\/h4\u003e\n\u003cp\u003ePermanent porous carbon scaffold. Increases K retention by 18–35% under leaching conditions — particularly valuable in containers and grow bags where chillies are most commonly grown in the UK.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e13\u003c\/span\u003e\u003ch4\u003eRapeseed Meal — British, slow release\u003c\/h4\u003e\n\u003cp\u003eSteady nitrogen over 6–8 weeks through microbial breakdown. Acts as a prebiotic carbon source. The gradual mineralisation avoids the nitrate spikes that suppress capsaicin biosynthesis and dilute fruit quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e14\u003c\/span\u003e\u003ch4\u003eMealworm Frass — Sustainably reared, SAR activator\u003c\/h4\u003e\n\u003cp\u003eContains chitin. Plants detect it as a pest signal and upregulate Systemic Acquired Resistance, priming defences against Phytophthora, Botrytis and bacterial spot — the most common pepper diseases in UK growing.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e15\u003c\/span\u003e\u003ch4\u003eClay Minerals — British, permanent CEC reservoir\u003c\/h4\u003e\n\u003cp\u003eMontmorillonite and illite clays. Ionic reservoirs that bind and slowly release K, Ca and Mg between waterings. Valuable in the container mixes where chillies are most commonly grown.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e16\u003c\/span\u003e\u003ch4\u003eSeaweed Extracts — British coastal, biostimulant\u003c\/h4\u003e\n\u003cp\u003eConcentrated cytokinins, betaines and mannitol. Enhances nutrient uptake, flower set and fruit development under stress. Chillies are particularly responsive to seaweed biostimulants during the transition from vegetative growth to fruiting.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e17\u003c\/span\u003e\u003ch4\u003eVolcanic Rock Dust (Basalt) — Mineral, trace elements\u003c\/h4\u003e\n\u003cp\u003eZinc, iron, copper, manganese — the enzyme cofactors for capsaicinoid biosynthesis and volatile aroma compound production. These trace minerals are catalysts in the pathways that produce the specific heat and flavour profile of each variety.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e18\u003c\/span\u003e\u003ch4\u003eEM-1 Microorganisms — Living culture\u003c\/h4\u003e\n\u003cp\u003eBacteria, yeasts, actinomycetes and lactic acid bacteria. Suppresses pathogens through competitive exclusion. Produces bioactive compounds that enhance secondary metabolite production — the capsaicinoids and flavour volatiles in developing fruit.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e19\u003c\/span\u003e\u003ch4\u003eSilica Meal — Mineral, structural\u003c\/h4\u003e\n\u003cp\u003eSilicon strengthens cell walls — a physical barrier against aphid stylet penetration and fungal spore germination. Improves stem rigidity, reducing collapse under heavy fruit load. Chillies loaded with ripe fruit on every node need structural support.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e20\u003c\/span\u003e\u003ch4\u003eHerbal Mixture — Plant-derived, biostimulant\u003c\/h4\u003e\n\u003cp\u003eComfrey (K-rich, rapid breakdown), nettle (iron, silica), yarrow (phosphorus-solubilising bacteria), chamomile (rhizobacteria support). Broad-spectrum biological stimulus.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ═══════════ TAB 3 — HOW TO USE ═══════════ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-ch-panel3\"\u003e\n    \u003ch2\u003eHow to use chilli \u0026amp; pepper fertiliser: rates, timing \u0026amp; method\u003c\/h2\u003e\n\n    \u003cdiv class=\"drf-callout drf-callout-gold\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eChillies and peppers are long-season crops\u003c\/span\u003e\u003cp\u003eStart feeding 10–14 days after transplanting once plants show new growth. Apply every 2–3 weeks during active growth, then stretch to every 3–4 weeks as fruit matures to concentrate capsaicin, sugars and volatiles. Superhots often prefer lighter feeding for maximum heat — observe your plants and adjust.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003ch3\u003eSoil preparation — before planting or at transplanting\u003c\/h3\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eBeds and raised beds\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 100–200g per m²  |  \u003cstrong\u003eMethod:\u003c\/strong\u003e Work into top 10–15cm\u003c\/div\u003e\n\u003cp\u003e100g\/m² for fertile soil or mild varieties. 150g\/m² for average garden soil — standard feeding for good heat and flavour. 200g\/m² for maximum heat, aroma and volatile production — this rate delivers a strong potassium and sulphur foundation for the season.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eSingle plants at transplanting\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 18–40g per plant (1.25–3 tablespoons)  |  \u003cstrong\u003eMethod:\u003c\/strong\u003e Mix into soil around each plant\u003c\/div\u003e\n\u003cp\u003eLeave a 10cm gap between the stem and the fertiliser ring. 18–20g for small transplants or superhots. 25–30g for standard varieties. 35–40g for large established plants or when pushing maximum flavour in sweet peppers.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eContainers and pots\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 5–10g per litre of compost  |  \u003cstrong\u003eMethod:\u003c\/strong\u003e Mix through full volume before planting\u003c\/div\u003e\n\u003cp\u003e5g\/L if using mycorrhizal fungi inoculant (lower P avoids suppressing colonisation). 10g\/L in plain compost. Most UK chilli growers grow in containers — this initial charge is the foundation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003chr class=\"drf-sep\"\u003e\n\n    \u003ch3\u003eTop-dressing — feeding through the season\u003c\/h3\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eRows and beds\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 100–160g per metre of row  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e Every 2–4 weeks\u003c\/div\u003e\n\u003cp\u003e100g\/m for superhots and early-season maintenance. 120g\/m for standard feeding. 160g\/m during peak fruiting for maximum volatile and capsaicinoid production. Spread in a narrow band 10–15cm from stems. Scratch in lightly. Water well. Feed every 2–3 weeks during active vegetative growth, stretch to every 3–4 weeks once fruit is setting and ripening — reducing frequency as fruit matures concentrates heat and aroma.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eSingle plants — in-ground or raised beds\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 15–40g per plant (1–3 tablespoons)  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e Every 2–4 weeks\u003c\/div\u003e\n\u003cp\u003e15–20g for superhots and ornamentals — light feeding preserves capsaicin concentration. 25–30g for standard hot and mild varieties. 35–40g for sweet peppers and when pushing maximum flavour and aroma. Sprinkle in a ring 10–15cm from stem. Incorporate lightly. Water in.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eContainers and pots\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 1–3g per litre of pot volume  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e Every 2–4 weeks\u003c\/div\u003e\n\u003cp\u003e1g\/L for mild varieties and early-season maintenance. 2g\/L for standard feeding. 3g\/L during peak fruiting for maximum heat, flavour and aroma — this rate pushes potassium delivery into the peak capsaicin and volatile production zone.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003chr class=\"drf-sep\"\u003e\n\n    \u003cdiv class=\"drf-callout\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eMeasuring tip\u003c\/span\u003e\u003cp\u003e3 level teaspoons = 1 tablespoon ≈ 15g. Mix the fertiliser with an equal volume of compost before application — reduces dust, coats the granules in microbe-rich compost, and supports the living biology for enhanced capsaicin and aroma compounds.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-callout drf-callout-gold\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eLate-season care for maximum heat\u003c\/span\u003e\u003cp\u003eStop or reduce feeding in the last 4–6 weeks before final harvest if plants are performing well. Ease off watering slightly when fruit is ripening — mild water stress concentrates capsaicin, sugars and volatiles for hotter, bolder peppers without cracking or splitting.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-callout\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eWorks well combined with…\u003c\/span\u003e\u003cp\u003eUse \u003cstrong\u003eDr Forest Seaweed Powder\u003c\/strong\u003e as a fortnightly foliar — boosts volatile production and stress tolerance. Apply \u003cstrong\u003eDr Forest Liquid Gypsum\u003c\/strong\u003e every 2–4 weeks for additional calcium. Apply mycorrhizal fungi at planting for improved nutrient uptake — research shows yield increases of 20–50% in inoculated peppers.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-callout drf-callout-gold\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eStorage\u003c\/span\u003e\u003cp\u003eCool, dry place out of direct sunlight. Keep sealed between uses. Effective for at least 18 months.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ═══════════ TAB 4 — GROWING GUIDE ═══════════ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-ch-panel4\"\u003e\n    \u003ch2\u003eChilli \u0026amp; pepper growing guide — varieties, training \u0026amp; feeding by type\u003c\/h2\u003e\n    \u003cp\u003eDifferent pepper types have fundamentally different nutritional needs. A sweet bell pepper and a Carolina Reaper are both \u003cem\u003eCapsicum\u003c\/em\u003e, but their feeding programmes should differ substantially.\u003c\/p\u003e\n\n    \u003ch3\u003eFeeding adjustments by variety type\u003c\/h3\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eSweet peppers — Bell, Ramiro, Marconi, Jimmy Nardello, Padron\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e Upper end of range  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e Every 2–3 weeks  |  \u003cstrong\u003eGoal:\u003c\/strong\u003e Sugar and vitamin C\u003c\/div\u003e\n\u003cp\u003eSweet peppers benefit from full-strength feeding. The phosphorus drives ascorbic acid (vitamin C) and sugar accumulation — the sweetness and tang that define a good sweet pepper. Use the upper rate range and maintain frequency throughout fruiting. These varieties have zero capsaicin — flavour is entirely about sugars, acids and aromatic volatiles.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eMild–medium chillies — Jalapeño, Poblano, Anaheim, Hungarian Wax, Serrano\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e Mid-range  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e Every 2–3 weeks  |  \u003cstrong\u003eGoal:\u003c\/strong\u003e Heat + flavour balance\u003c\/div\u003e\n\u003cp\u003eThe varieties where you want both heat and complex flavour. Standard rates, standard timing. These respond well to the K-led 3-3.5-7 formula — potassium drives sugar loading while moderate N preserves the capsaicin that gives these varieties their character.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eHot chillies — Scotch Bonnet, Habanero, Birds Eye, Cayenne, Thai\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e Mid to lower range  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e Every 3–4 weeks  |  \u003cstrong\u003eGoal:\u003c\/strong\u003e Maximum heat and aroma\u003c\/div\u003e\n\u003cp\u003eThe \u003cem\u003eCapsicum chinense\u003c\/em\u003e varieties (Scotch Bonnet, Habanero) have the most complex aroma profiles of any peppers — fruity, floral, tropical esters alongside serious heat. Lighter feeding preserves capsaicin concentration. Overfeed and you dilute the heat with water and vegetative growth.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eSuperhots — Carolina Reaper, Trinidad Scorpion, Bhut Jolokia, Komodo Dragon\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e Lower end of range  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e Every 3–4 weeks  |  \u003cstrong\u003eGoal:\u003c\/strong\u003e Maximum capsaicin concentration\u003c\/div\u003e\n\u003cp\u003eSuperhots are the varieties where moderate nitrogen makes the biggest difference. Excess N is the single most common cause of disappointing SHU in home-grown superhots. Feed lightly, water consistently, and allow mild stress during ripening. The capsaicin concentration that makes a Reaper a Reaper is produced under nutritional constraint, not abundance.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eOrnamental peppers — Prairie Fire, Black Pearl, Medusa, Numex Twilight\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e Lower end of range  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e Every 4 weeks  |  \u003cstrong\u003eGoal:\u003c\/strong\u003e Compact growth, vivid colour\u003c\/div\u003e\n\u003cp\u003eMinimal feeding. The K and S from Polyhalite drive anthocyanin production for the vivid purples, reds and oranges these varieties display. Excess N produces leggy growth and dilutes colour intensity.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003chr class=\"drf-sep\"\u003e\n\n    \u003ch3\u003eGreenhouse vs outdoor\u003c\/h3\u003e\n    \u003cdiv class=\"drf-compare\"\u003e\n      \u003cdiv class=\"drf-compare-box\"\u003e\n        \u003ch4\u003eGreenhouse, polytunnel \u0026amp; windowsill\u003c\/h4\u003e\n        \u003cul\u003e\n          \u003cli\u003eEssential for superhots and most hot varieties in the UK climate\u003c\/li\u003e\n          \u003cli\u003eLonger season — plant out April, harvest through to October\u003c\/li\u003e\n          \u003cli\u003eHigher temperatures accelerate capsaicin biosynthesis\u003c\/li\u003e\n          \u003cli\u003eFeed at the upper end, every 2–3 weeks during peak\u003c\/li\u003e\n          \u003cli\u003eVentilate well — stagnant air promotes Botrytis\u003c\/li\u003e\n          \u003cli\u003eWater in the morning to allow foliage to dry\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"drf-compare-box\"\u003e\n        \u003ch4\u003eOutdoor growing\u003c\/h4\u003e\n        \u003cul\u003e\n          \u003cli\u003eRealistic only for mild–medium varieties in most of the UK\u003c\/li\u003e\n          \u003cli\u003eShorter season — transplant after last frost (late May), harvest July–September\u003c\/li\u003e\n          \u003cli\u003eChoose early-maturing varieties: Jalapeño, Padron, Cayenne, Hungarian Wax\u003c\/li\u003e\n          \u003cli\u003eFeed at mid-range, every 3–4 weeks\u003c\/li\u003e\n          \u003cli\u003eShelter from wind — peppers are easily damaged\u003c\/li\u003e\n          \u003cli\u003eFleece overnight if temperatures drop below 10°C\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003chr class=\"drf-sep\"\u003e\n\n    \u003ch3\u003eUK seasonal timeline\u003c\/h3\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n\u003cth\u003eMonth\u003c\/th\u003e\n\u003cth\u003eWhat to Do\u003c\/th\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJan–Feb\u003c\/td\u003e\n\u003ctd\u003eSow superhots and slow varieties indoors at 25–30°C. Use a heated propagator. Superhots need 10–14 days to germinate.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMarch\u003c\/td\u003e\n\u003ctd\u003eSow mild–medium varieties indoors at 20–25°C. Pot on superhots to 9cm pots. Begin feeding seedlings at quarter strength once they have 4 true leaves.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApril\u003c\/td\u003e\n\u003ctd\u003ePot on to final containers. Prepare greenhouse beds with base dressing (100–200g\/m²). Transplant to greenhouse positions. Begin full feeding programme 10–14 days after transplanting.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMay\u003c\/td\u003e\n\u003ctd\u003eTransplant outdoor varieties after last frost (late May). First flowers on greenhouse plants. Feed every 2–3 weeks. Pinch out growing tip at 30cm for bushier plants (optional for most varieties).\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJune–July\u003c\/td\u003e\n\u003ctd\u003ePeak feeding period. Fruit setting on all nodes. Feed every 2–3 weeks at upper end. Support plants with canes or cages as fruit load increases. Remove any fruit touching the soil.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAugust\u003c\/td\u003e\n\u003ctd\u003eFirst ripe fruit on most varieties. Begin stretching feed interval to 3–4 weeks. Reduce watering slightly to concentrate capsaicin and sugars. Harvest regularly to encourage continued fruiting.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSep–Oct\u003c\/td\u003e\n\u003ctd\u003eMain harvest. Stop feeding 4–6 weeks before final harvest. Green fruit ripens on the plant or on a sunny windowsill after picking. Pull plants before first frost.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\n\n    \u003chr class=\"drf-sep\"\u003e\n\n    \u003ch3\u003eCommon problems\u003c\/h3\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eBlossom end rot\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eCause:\u003c\/strong\u003e Inconsistent watering disrupting calcium delivery to developing fruit\u003c\/div\u003e\n\u003cp\u003eThe 7% calcium in this formula provides the mineral — but calcium reaches fruit only via the transpiration stream. Consistent, deep watering is as important as calcium supply. Dr Forest Liquid Gypsum as a root drench helps in severe cases. Remove affected fruit.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eFlower drop\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eCause:\u003c\/strong\u003e Temperature stress (below 15°C or above 32°C), drought, or excess nitrogen\u003c\/div\u003e\n\u003cp\u003eMaintain consistent temperatures. Water regularly. If feeding at the upper end, reduce rate. The moderate 3% N in the formula minimises N-related flower drop, but very fertile soil plus high feeding rates can still trigger it.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eAphids\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eCause:\u003c\/strong\u003e Sap-sucking insects attracted to soft new growth — particularly in greenhouses\u003c\/div\u003e\n\u003cp\u003eSilica Meal in the formula strengthens cell walls, reducing stylet penetration. Biological controls: ladybirds, lacewing larvae, parasitic wasps. Neem oil spray as a last resort. Strong, well-fed plants resist aphid colonisation better than stressed ones.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eDisappointing heat levels\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eCause:\u003c\/strong\u003e Excess nitrogen, overwatering, or insufficient light and temperature\u003c\/div\u003e\n\u003cp\u003eReduce feeding frequency. Allow mild water stress during ripening. Ensure 6+ hours of direct sun. Capsaicin is produced as a stress response — comfortable plants produce less of it. Superhots need sustained temperatures above 25°C for maximum SHU.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eSunscald\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eCause:\u003c\/strong\u003e Direct intense sun on fruit — white or tan papery patches\u003c\/div\u003e\n\u003cp\u003eMaintain adequate foliage canopy to shade fruit. Do not over-defoliate. In greenhouses, shade netting during heatwaves. Affected fruit is edible but has reduced shelf life.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ═══════════ TAB 5 — THE SCIENCE ═══════════ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-ch-panel5\"\u003e\n    \u003ch2\u003eThe science of chilli heat, pepper flavour and why nutrition is decisive\u003c\/h2\u003e\n    \u003cp\u003ePepper flavour combines four systems: \u003cstrong\u003ecapsaicinoids\u003c\/strong\u003e (heat — capsaicin and dihydrocapsaicin account for 90% of perceived pungency), \u003cstrong\u003esugars\u003c\/strong\u003e (fructose and glucose for sweetness), \u003cstrong\u003eorganic acids\u003c\/strong\u003e (ascorbic acid for tang and vitamin C), and \u003cstrong\u003evolatile organic compounds\u003c\/strong\u003e (179–208 identified VOCs including esters, aldehydes and terpenoids). All four are profoundly influenced by nutrition.\u003c\/p\u003e\n\n    \u003cdiv class=\"drf-stats\"\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003eN 3%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003ePreserves capsaicin\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003eP 3.5%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eSugars \u0026amp; vitamin C\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003eK 7%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eVolatiles \u0026amp; quality\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003eS 6.4%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eAroma compounds\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003chr class=\"drf-sep\"\u003e\n\n    \u003ch3\u003eThe capsaicin-nitrogen connection\u003c\/h3\u003e\n    \u003cp\u003eCapsaicin is synthesised from phenylalanine via the phenylpropanoid (PAL) pathway. The same phenylalanine pool is also used for protein synthesis. When nitrogen is abundant, the plant preferentially directs phenylalanine toward protein for new growth. When N is moderate, more phenylalanine is available for the PAL pathway — producing more capsaicin, more phenolic compounds, and more lignin for structural strength. This is why high-nitrogen chillies are often disappointingly mild.\u003c\/p\u003e\n\n    \u003ch3\u003eWhy phosphorus matters for peppers\u003c\/h3\u003e\n    \u003cp\u003ePhosphorus drives two quality metrics specific to peppers: ascorbic acid (vitamin C) biosynthesis and sugar accumulation. The P-ascorbic acid link is well-documented in \u003cem\u003eCapsicum\u003c\/em\u003e trials — P-deficient peppers have measurably lower vitamin C and sugars. At 3.5% P, the formula supports continuous ascorbic acid production throughout the fruiting season.\u003c\/p\u003e\n\n    \u003chr class=\"drf-sep\"\u003e\n\n    \u003ch3\u003eMechanisms of action\u003c\/h3\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e01\u003c\/span\u003e\u003ch4\u003eCapsaicin preservation through moderate nitrogen\u003c\/h4\u003e\n\u003cp\u003eModerate N preserves the phenylalanine pool for the PAL pathway. Organic N mineralises slowly, providing a steady trickle rather than the nitrate spike that diverts phenylalanine to protein production.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e02\u003c\/span\u003e\u003ch4\u003ePotassium drives sugar transport and volatile production\u003c\/h4\u003e\n\u003cp\u003eK activates sucrose synthase and drives phloem loading into developing fruit. Higher Brix, higher fructose, and increased substrate for ester and aldehyde biosynthesis.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e03\u003c\/span\u003e\u003ch4\u003eSulphur and volatile aroma compounds\u003c\/h4\u003e\n\u003cp\u003e6.4% sulphur from four sources (Polyhalite, SOP, Gypsum, Epsom Salt). Sulphur-containing amino acids are precursors to many key pepper volatiles. Sulphur also drives carotenoid accumulation — the pigments responsible for red, orange and yellow fruit colour.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e04\u003c\/span\u003e\u003ch4\u003eMagnesium as capsaicin enzyme cofactor\u003c\/h4\u003e\n\u003cp\u003eMagnesium is a cofactor in the enzymatic pathway that converts vanillylamine and fatty acyl-CoA into capsaicin. Mg-deficient plants produce measurably less capsaicin. Three Mg sources at different speeds maintain uninterrupted enzyme activity.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e05\u003c\/span\u003e\u003ch4\u003eCalcium for fruit quality and shelf life\u003c\/h4\u003e\n\u003cp\u003e7% calcium from four sources strengthens pectin cross-links in cell walls. Firmer fruit that resists bruising and deterioration. Continuous Ca supply prevents blossom end rot — particularly important in long-season container chillies.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e06\u003c\/span\u003e\u003ch4\u003eMicrobial metabolites and flavour complexity\u003c\/h4\u003e\n\u003cp\u003eDecomposing organic ingredients generate secondary metabolites that enter the plant and directly influence volatile biosynthesis. Organic management consistently produces peppers with higher total VOC content (179–208 compounds identified).\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003chr class=\"drf-sep\"\u003e\n\n    \u003ch3\u003eStudy data\u003c\/h3\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n\u003cth\u003eStudy\u003c\/th\u003e\n\u003cth\u003eFinding\u003c\/th\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOrganic trials incl. Topepo variety (2020–2024)\u003c\/td\u003e\n\u003ctd\u003eOrganic: total phenols, flavonoids, ascorbic acid, carotenoids, sugars and 179–208 aroma volatiles enhanced 15–50% vs controls.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAMF\/biofertiliser combination trials (2023–2024)\u003c\/td\u003e\n\u003ctd\u003eOrganic + biological: higher yield, phenols, lycopene, β-carotene, antioxidant activity. Organic outperformed chemical for nutritional and flavour quality.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGlobal meta-analysis (2023), 7,859 data pairs\u003c\/td\u003e\n\u003ctd\u003eNPK + organic: nutritional quality +12% average. Peppers identified as highly responsive. Higher relative P and K support sugars, vitamin C and flavour.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\n\n    \u003cdiv class=\"drf-refs\"\u003e\n\u003ch4\u003eReferences\u003c\/h4\u003e\n      \u003col\u003e\n        \u003cli\u003eMarschner, P. ed. (2012). \u003cem\u003eMarschner's Mineral Nutrition of Higher Plants\u003c\/em\u003e, 3rd ed. Academic Press.\u003c\/li\u003e\n        \u003cli\u003eWang, Y. et al. (2023). Combined organic–mineral fertilisation meta-analysis. \u003cem\u003eScience of the Total Environment\u003c\/em\u003e.\u003c\/li\u003e\n        \u003cli\u003eMaterska, M. \u0026amp; Perucka, I. (2005). Antioxidant activity of capsaicinoids. \u003cem\u003eJ. Agric. Food Chem.\u003c\/em\u003e\n\u003c\/li\u003e\n        \u003cli\u003eNardi, S. et al. (2009). Physiological effects of humic substances. \u003cem\u003eSoil Biology and Biochemistry\u003c\/em\u003e.\u003c\/li\u003e\n        \u003cli\u003eKhan, A.A. et al. (2009). Triacontanol. \u003cem\u003ePlant Growth Regulation\u003c\/em\u003e, 53(3), 203–218.\u003c\/li\u003e\n        \u003cli\u003eCraigie, J.S. (2011). Seaweed extract stimuli. \u003cem\u003eJ. Applied Phycology\u003c\/em\u003e, 23(3), 371–393.\u003c\/li\u003e\n        \u003cli\u003eLehmann, J. et al. (2011). Biochar effects on soil biota. \u003cem\u003eSoil Biology and Biochemistry\u003c\/em\u003e, 43(9), 1812–1836.\u003c\/li\u003e\n        \u003cli\u003eJohnston, A.E. \u0026amp; Dawson, C.J. (2018). Polyhalite as a fertiliser. \u003cem\u003eProc. 826, Int. Fertiliser Society\u003c\/em\u003e.\u003c\/li\u003e\n      \u003c\/ol\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ═══════════ TAB 6 — FAQ ═══════════ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-ch-panel6\"\u003e\n    \u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-ch-faq1\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ch-faq1\"\u003eWhy do my superhots always come out milder than expected?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eAlmost always excess nitrogen. When N is abundant, the plant directs phenylalanine toward protein synthesis rather than the PAL pathway that produces capsaicin. Feed lightly with the lower rate range, allow mild water stress during ripening, and ensure sustained temperatures above 25°C. Capsaicin is a stress response — comfortable plants produce less of it.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-ch-faq2\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ch-faq2\"\u003eCan I use this for sweet peppers as well as chillies?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes — see the Growing Guide tab. Sweet peppers benefit from the upper rate range. The phosphorus drives ascorbic acid and sugar production, and the K drives phloem loading of sugars. The formula works across all \u003cem\u003eCapsicum\u003c\/em\u003e species — adjust rates based on variety type.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-ch-faq3\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ch-faq3\"\u003eWhy does this fertiliser contain sulphur?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003e6.4% sulphur from four sources. Sulphur-containing amino acids are precursors to many key pepper volatile aroma compounds. Sulphur also drives carotenoid accumulation — the pigments responsible for red, orange and yellow fruit colour. Most general-purpose feeds contain no sulphur at all.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-ch-faq4\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ch-faq4\"\u003eWill the calcium prevent blossom end rot?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eThe formula supplies 7% calcium from four sources. BER is primarily a water-stress disorder — calcium reaches fruit only via the transpiration stream. Consistent deep watering is as important as calcium supply. For severe cases, supplement with Dr Forest Liquid Gypsum as a root drench every 2–4 weeks.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-ch-faq5\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ch-faq5\"\u003eShould I reduce feeding as fruit ripens?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes — stretch the interval to 3–4 weeks and reduce watering slightly. Mild nutritional and water stress during ripening concentrates capsaicin, sugars and volatile aroma compounds. Stop feeding entirely in the last 4–6 weeks if plants are performing well.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-ch-faq6\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ch-faq6\"\u003eDark green leaves, tall leggy growth and few fruit — what is wrong?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eExcess nitrogen. Reduce feeding rate and stretch interval to 4 weeks. If soil was recently heavily composted, skip one application entirely. The formula's moderate 3% N minimises this risk, but very fertile soil plus full-rate feeding can still trigger it.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-ch-faq7\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ch-faq7\"\u003eCan I use this with mycorrhizal fungi?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes — use the lower compost rate (5g\/L) initially to avoid high P inhibiting colonisation. Apply inoculant directly to roots at planting. Resume normal rates after 4–6 weeks. Research shows 20–50% yield increases in mycorrhizal-inoculated peppers.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-ch-faq8\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ch-faq8\"\u003eWhy is magnesium important for chillies specifically?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eMagnesium is a cofactor in the enzymatic pathway that converts vanillylamine and fatty acyl-CoA into capsaicin. Mg-deficient chilli plants produce measurably less capsaicin. Three Mg sources at different release speeds maintain uninterrupted enzyme activity throughout the long fruiting season.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-ch-faq9\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ch-faq9\"\u003eIs it safe for edible crops, pets and children?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes. All ingredients are organic and mineral in origin with no synthetic chemicals, no slaughterhouse by-products and no persistent toxins. No withholding period.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-ch-faq10\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ch-faq10\"\u003eIs it organic?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eMade from organic and natural ingredients. Not certified organic. No synthetic chemicals, no slaughterhouse waste, no GMO inputs.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Dr Forest","offers":[{"title":"1.5kg (750gx2)","offer_id":57034622271862,"sku":null,"price":11.5,"currency_code":"GBP","in_stock":true},{"title":"4kg","offer_id":57034622304630,"sku":null,"price":24.0,"currency_code":"GBP","in_stock":true},{"title":"9kg","offer_id":57034622337398,"sku":null,"price":44.0,"currency_code":"GBP","in_stock":true},{"title":"15kg","offer_id":57034622370166,"sku":null,"price":60.49,"currency_code":"GBP","in_stock":true},{"title":"30kg","offer_id":57034622402934,"sku":null,"price":120.0,"currency_code":"GBP","in_stock":true},{"title":"60kg","offer_id":57034622435702,"sku":null,"price":240.0,"currency_code":"GBP","in_stock":true},{"title":"120kg","offer_id":57034622468470,"sku":null,"price":420.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0049\/8194\/8504\/files\/premium-chilli-pepper-fertiliser-slow-release-natural-plant-food-206.webp?v=1772229900","url":"https:\/\/www.drforest.co.uk\/products\/organic-chilli-pepper-fertiliser","provider":"Dr Forest","version":"1.0","type":"link"}