{"product_id":"living-soil-refills-veg-bloom-bone-meal-micronised-rock-phosphate","title":"Living Soil Refills UK | Veg, Bloom, Bone Meal \u0026 Micronised Rock Phosphate | Dr Forest","description":"\u003cdiv class=\"drf-wrap\"\u003e\n\u003cstyle\u003e.drf-wrap{--drf-grn:#1B3D2F;--drf-grn-dark:#0F2A1F;--drf-grn-light:#E8F0EB;--drf-grn-mid:#4a7a5e;--drf-cream:#F5F2EC;--drf-gold:#C5A55A;--drf-gold-light:#FAF7F0;--drf-muted:#3A4A40;--drf-white:#FFFFFF;--drf-border:#d4cfc5;max-width:100%;font-family:'Jost',sans-serif;color:var(--drf-grn);line-height:1.65}.drf-wrap *{box-sizing:border-box}.drf-wrap h2,.drf-wrap h3{font-family:'Cormorant Garamond',serif;font-weight:400;color:var(--drf-grn);line-height:1.2}.drf-wrap h2{font-size:1.9em;margin:0 0 .5em}.drf-wrap h3{font-size:1.35em;margin:1.6em 0 .5em}.drf-wrap h4{font-size:.72em;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--drf-gold);margin:0 0 .6em}.drf-wrap p{margin:0 0 1em;color:var(--drf-muted)}.drf-wrap 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var(--drf-gold);color:var(--drf-gold);display:flex;align-items:center;justify-content:center;font-size:.85em}.drf-faq .a{display:none;padding:0 0 1.2em;color:var(--drf-muted);font-size:.95em}.drf-faq input:checked+label::after{content:\"–\"}.drf-faq input:checked~.drf-a{display:block}.drf-refs{font-size:.82em;color:var(--drf-muted);line-height:1.6;margin-top:1.5em}.drf-refs p{margin-bottom:.45em;font-size:1em}.drf-sign{background:var(--drf-grn-dark);color:#cfdcd3;padding:1.6em 1.8em;margin-top:2em;font-size:.94em}.drf-sign strong{color:var(--drf-gold);font-weight:500}@media(max-width:600px){.drf-stats{grid-template-columns:1fr}.drf-tabs label{font-size:.6em;padding:.9em .2em}.drf-hero h2{font-size:1.7em}}\u003c\/style\u003e\n\u003cdiv class=\"drf-hero\"\u003e\n\u003cdiv class=\"drf-eyebrow\"\u003eLiving soil programme — sold separately\u003c\/div\u003e\n\u003ch2\u003eLiving Soil Refills\u003c\/h2\u003e\n\u003cp\u003eVeg, Bloom, bone meal and micronised rock phosphate. Restock what you need.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cinput type=\"radio\" name=\"rf-tab\" id=\"rf-t1\" checked\u003e\u003cinput type=\"radio\" name=\"rf-tab\" id=\"rf-t2\"\u003e\u003cinput type=\"radio\" name=\"rf-tab\" id=\"rf-t3\"\u003e\u003cinput type=\"radio\" name=\"rf-tab\" id=\"rf-t4\"\u003e\u003cdiv class=\"drf-tabs\"\u003e\n\u003clabel for=\"rf-t1\"\u003eOverview\u003c\/label\u003e\u003clabel for=\"rf-t2\"\u003eThe blends\u003c\/label\u003e\u003clabel for=\"rf-t3\"\u003eHow to use\u003c\/label\u003e\u003clabel for=\"rf-t4\"\u003eFAQ\u003c\/label\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-panel\" id=\"rf-p1\"\u003e\n\u003cp\u003e\u003cem\u003eEverything in the Dr Forest living soil programme, sold on its own.\u003c\/em\u003e Restock the blend you have run out of, feed heavier for maximum yield, or re-charge a soil you are running for a second or third year. Choose your component and your size. New to the programme? Start with the complete \u003ca href=\"\/products\/organic-living-soil-fertiliser-high-nitrogen-veg-bloom-rock-phosphate-charge\"\u003eLiving Soil kit\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"drf-use\"\u003e\n\u003cstrong\u003eVeg — 3.5-0.4-2.8\u003c\/strong\u003e\u003cspan\u003eThe growing-phase amendment. Nitrogen-led, with calcium and magnesium from day one.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-use\"\u003e\n\u003cstrong\u003eBloom — 1.9-0.4-3.6\u003c\/strong\u003e\u003cspan\u003eThe flowering amendment. Nitrogen steps down, potash and calcium step up.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-use\"\u003e\n\u003cstrong\u003eBone meal — 3.5-18.5\u003c\/strong\u003e\u003cspan\u003eThe phosphorus charge. Worked into the soil once, a week before planting. Adds a little nitrogen.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-use\"\u003e\n\u003cstrong\u003eMicronised rock phosphate — 31% P₂O₅\u003c\/strong\u003e\u003cspan\u003eThe plant-based phosphorus charge. Nitrogen-free, slower than bone meal and more dependent on an acidic soil.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-callout\"\u003e\n\u003ch4\u003eReusing your soil? This is what you need\u003c\/h4\u003e\n\u003cp\u003eVeg and Bloom at \u003cem\u003efull strength\u003c\/em\u003e, and only \u003cem\u003ea third\u003c\/em\u003e of the phosphorus charge — last year's phosphorus is still banked in the soil. Top the organic matter back up with compost and you are away.\u003c\/p\u003e\n\u003cp\u003eYou bought the soil once. You do not need to buy it again.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-pullquote\"\u003eFeed the soil and the soil feeds the plant.\u003c\/div\u003e\n\u003cp\u003e★★★★★ 5-star across all platforms · 4,300+ reviews. Handcrafted in small batches in Stockport, Greater Manchester, in compostable packaging. Made with organic ingredients, and safe around children, pets and wildlife.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-panel\" id=\"rf-p2\"\u003e\n\u003ch3\u003eVeg — 3.5-0.4-2.8\u003c\/h3\u003e\n\u003cp\u003eThirteen inputs, nitrogen-led, with a carbon backbone of organic alfalfa meal and bokashi-fermented bran. Calcium and magnesium available from day one. Humic and fulvic acid at 1% each.\u003c\/p\u003e\n\u003cdiv class=\"drf-callout\"\u003e\n\u003ch4\u003eAnalysis\u003c\/h4\u003e\n\u003cp\u003eN 3.5% · P₂O₅ 0.4% · K₂O 2.8% · CaO 2.9% · MgO 1.9% · SO₃ 8.1%\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eAlfalfa meal 37.5% · amino-acid nitrogen from molasses extract 17% · bokashi bran 8.5% · gypsum 7% · seaweed meal 6.5% · kieserite 6.5% · zeolite 5.85% · malted barley 4.5% · sulphate of potash 3% · biochar 1.5% · humic acid 1% · fulvic acid 1% · boron complexed with humic acid 0.15%\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eBloom — 1.9-0.4-3.6\u003c\/h3\u003e\n\u003cp\u003eNitrogen drops back; potash and calcium rise. Magnesium sits on its optimum — enough for the job, and no more. Too much magnesium suppresses reproductive growth without buying any quality, so it is held level rather than pushed.\u003c\/p\u003e\n\u003cdiv class=\"drf-callout\"\u003e\n\u003ch4\u003eAnalysis\u003c\/h4\u003e\n\u003cp\u003eN 1.9% · P₂O₅ 0.4% · K₂O 3.6% · CaO 3.7% · MgO 1.7% · SO₃ 10.0%\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eAlfalfa meal 31% · zeolite 17.15% · gypsum 10% · bokashi bran 8% · seaweed meal 6.5% · amino-acid nitrogen from molasses extract 5.5% · kieserite 5.5% · sulphate of potash 5.2% · malted barley 4.5% · biochar 4.5% · humic acid 1% · fulvic acid 1% · boron complexed with humic acid 0.15%\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat the feed delivers — and what your plants need\u003c\/h3\u003e\n\u003cp\u003eEvery level is set against peer-reviewed trials on flowering and fruiting crops, not tradition. Here is what a standard build puts into the soil solution, against what the plant actually wants — and the one that matters most is phosphorus.\u003c\/p\u003e\n\u003cdiv style=\"margin:1.6em 0\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 720 340\" width=\"100%\" style=\"height:auto;max-width:720px;display:block;margin:0 auto\"\u003e\n\u003crect width=\"720\" height=\"340\" fill=\"#F5F2EC\"\u003e\u003c\/rect\u003e\n\u003ctext x=\"24\" y=\"42\" font-family=\"'Cormorant Garamond', Caladea, Georgia, serif\" font-size=\"21\" font-weight=\"700\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003eWhat the feed delivers, against what the plant needs\u003c\/text\u003e\n\u003ctext x=\"24\" y=\"66\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003eA standard build, in the soil solution\u003c\/text\u003e\n\u003ctext x=\"24\" y=\"115\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"15\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003ePotassium\u003c\/text\u003e\n\u003crect x=\"175\" y=\"101\" width=\"370\" height=\"18\" fill=\"#e9e5db\"\u003e\u003c\/rect\u003e\n\u003crect x=\"286.0\" y=\"101\" width=\"212.8\" height=\"18\" fill=\"#4a7a5e\" opacity=\"0.30\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"471.0\" y1=\"95\" x2=\"471.0\" y2=\"125\" stroke=\"#1B3D2F\" stroke-width=\"3.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"283.0\" y=\"140\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"10.5\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003e60\u003c\/text\u003e\n\u003ctext x=\"501.75\" y=\"140\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"10.5\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003e175\u003c\/text\u003e\n\u003ctext x=\"557\" y=\"115\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12.5\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003e~160 mg\/L delivered\u003c\/text\u003e\n\u003ctext x=\"24\" y=\"183\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"15\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003ePhosphorus\u003c\/text\u003e\n\u003crect x=\"175\" y=\"169\" width=\"370\" height=\"18\" fill=\"#e9e5db\"\u003e\u003c\/rect\u003e\n\u003crect x=\"380.6\" y=\"169\" width=\"41.1\" height=\"18\" fill=\"#4a7a5e\" opacity=\"0.30\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"397.0\" y1=\"163\" x2=\"397.0\" y2=\"193\" stroke=\"#1B3D2F\" stroke-width=\"3.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"377.55555555555554\" y=\"208\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"10.5\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003e25\u003c\/text\u003e\n\u003ctext x=\"424.66666666666663\" y=\"208\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"10.5\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003e30\u003c\/text\u003e\n\u003ctext x=\"557\" y=\"183\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12.5\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003e~27 mg\/L delivered\u003c\/text\u003e\n\u003ctext x=\"24\" y=\"251\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"15\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003eMagnesium\u003c\/text\u003e\n\u003crect x=\"175\" y=\"237\" width=\"370\" height=\"18\" fill=\"#e9e5db\"\u003e\u003c\/rect\u003e\n\u003crect x=\"336.9\" y=\"237\" width=\"161.9\" height=\"18\" fill=\"#4a7a5e\" opacity=\"0.30\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"429.4\" y1=\"231\" x2=\"429.4\" y2=\"261\" stroke=\"#1B3D2F\" stroke-width=\"3.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"333.875\" y=\"276\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"10.5\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003e35\u003c\/text\u003e\n\u003ctext x=\"501.75\" y=\"276\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"10.5\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003e70\u003c\/text\u003e\n\u003ctext x=\"557\" y=\"251\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12.5\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003e~55 mg\/L delivered\u003c\/text\u003e\n\u003crect x=\"24\" y=\"307\" width=\"26\" height=\"12\" fill=\"#4a7a5e\" opacity=\"0.30\"\u003e\u003c\/rect\u003e\n\u003ctext x=\"56\" y=\"316\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003ewhat the plant needs\u003c\/text\u003e\n\u003cline x1=\"230\" y1=\"307\" x2=\"230\" y2=\"319\" stroke=\"#1B3D2F\" stroke-width=\"3.5\"\u003e\u003c\/line\u003e\n\u003ctext x=\"240\" y=\"316\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003ewhat this feed delivers\u003c\/text\u003e\n\u003c\/svg\u003e\u003c\/div\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eNutrient\u003c\/th\u003e\n\u003cth\u003eThis feed delivers\u003c\/th\u003e\n\u003cth\u003eFlowering plants need\u003c\/th\u003e\n\u003cth\u003eFruiting \u0026amp; root veg need\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNitrogen\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ehigh in veg, lean through flower\u003c\/td\u003e\n\u003ctd\u003elow in flower — lifts flavour\u003c\/td\u003e\n\u003ctd\u003emoderate and steady\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhosphorus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~27 mg\/L, from the charge\u003c\/td\u003e\n\u003ctd\u003e25–30 mg\/L\u003c\/td\u003e\n\u003ctd\u003e35–50 mg\/L — add extra P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePotassium\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~160 mg\/L\u003c\/td\u003e\n\u003ctd\u003e60–175 mg\/L\u003c\/td\u003e\n\u003ctd\u003e~300 mg\/L — add extra K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalcium\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ehigh, from day one\u003c\/td\u003e\n\u003ctd\u003eto sufficiency\u003c\/td\u003e\n\u003ctd\u003ehigh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMagnesium\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~55 mg\/L\u003c\/td\u003e\n\u003ctd\u003e35–70 mg\/L\u003c\/td\u003e\n\u003ctd\u003e35–70 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\"But don't flowers need a phosphorus spike?\"\u003c\/h3\u003e\n\u003cp\u003eIt is the most common belief in growing, and the peer-reviewed answer is no. A flowering plant's phosphorus demand is real but modest, and the same 25–30 mg\/L in the soil solution covers every stage — bloom included. Raise it above that and flower number and weight do not move (Westmoreland \u0026amp; Bugbee 2022; Shiponi \u0026amp; Bernstein 2021). A \"PK spike for bloom\" sells feed; it does not grow more flower. Bloom boosters seem to work only because they also cut the nitrogen — and it is the lower nitrogen doing the work, not the phosphorus. Dr Forest gets that effect honestly: nitrogen steps down in the Bloom blend while the charge holds phosphorus flat at the level the flower actually uses.\u003c\/p\u003e\n\u003ch3\u003eHow much phosphorus you feed — Dr Forest vs the rest\u003c\/h3\u003e\n\u003cp\u003eEvery other living-soil feed bundles phosphorus into the amendment and re-adds it each grow. This is the phosphorus in the feed itself, from each product's own published analysis.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eLiving-soil feed\u003c\/th\u003e\n\u003cth\u003eP₂O₅ in the feed\u003c\/th\u003e\n\u003cth\u003eHow it is applied\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDr Forest Veg \u0026amp; Bloom\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e0.4%\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ea separate one-time charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeading grow-stage feeds\u003c\/td\u003e\n\u003ctd\u003e3%\u003c\/td\u003e\n\u003ctd\u003ein the feed, re-added every grow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCraft bloom blends\u003c\/td\u003e\n\u003ctd\u003e5%\u003c\/td\u003e\n\u003ctd\u003ein the feed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-phosphorus bloom feeds\u003c\/td\u003e\n\u003ctd\u003e8%\u003c\/td\u003e\n\u003ctd\u003ein the feed, every grow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSome of these use the same micronised rock phosphate Dr Forest does — they simply bundle it into a 3–8% feed and re-apply it every stage, every crop. Dr Forest works it in once as a separate charge and takes only a third on reused soil, so the soil never loads up.\u003c\/p\u003e\n\u003ch3\u003eWhy re-amending a 3–8% phosphorus feed goes wrong\u003c\/h3\u003e\n\u003cp\u003eRock phosphate and bone meal are slow-release — they weather over years, not weeks. A feed carrying 3–8% phosphorus doses that slow mineral at a rate that would only make sense for a fast inorganic salt the plant uses up each cycle. But slow phosphorus does not leave. Re-amend every grow and you add it far faster than the plant can take it up, so it climbs.\u003c\/p\u003e\n\u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"num\"\u003e01\u003c\/span\u003e\u003cstrong\u003eIt builds past what a plant can use\u003c\/strong\u003e\u003cp\u003eA plant draws about 25–30 mg\/L of phosphorus from the soil solution and no more. Above that there is no gain in growth, flower or fruit (Westmoreland \u0026amp; Bugbee 2022) — everything past sufficiency simply accumulates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"num\"\u003e02\u003c\/span\u003e\u003cstrong\u003eIt competes with zinc and iron\u003c\/strong\u003e\u003cp\u003eSurplus phosphorus competes with zinc and iron for uptake — an effect set by the phosphorus-to-zinc balance rather than a single figure, and worst on soils already low in zinc. They are the two micronutrients behind a clean finish and behind aroma and flavour; the blends carry seaweed and a full micronutrient package to keep them available. The plant can look fed and still run short of them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"num\"\u003e03\u003c\/span\u003e\u003cstrong\u003eIt peaks at the wrong moment\u003c\/strong\u003e\u003cp\u003eSlow phosphorus added early and topped up each cycle sits at its highest late in the grow and into the next — exactly when you want the feed easing off for a clean ripening. You cannot turn a banked mineral back down.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"num\"\u003e04\u003c\/span\u003e\u003cstrong\u003eThe science shows no upside\u003c\/strong\u003e\u003cp\u003eIn controlled trials, raising phosphorus above sufficiency does not lift yield or quality. It raises tissue phosphorus, micronutrient antagonism and leaching instead (Westmoreland \u0026amp; Bugbee 2022; Shiponi \u0026amp; Bernstein 2021).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhy phosphorus does not belong in the feed\u003c\/h3\u003e\n\u003cp\u003ePut a slow phosphorus into the feed and top-dress it cycle after cycle, and it stacks in the soil far faster than the plant can draw it down.\u003c\/p\u003e\n\u003cdiv style=\"margin:1.6em 0\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 700 470\" width=\"100%\" style=\"height:auto;max-width:700px;display:block;margin:0 auto\"\u003e\n\u003crect width=\"700\" height=\"470\" fill=\"#F5F2EC\"\u003e\u003c\/rect\u003e\n\u003ctext x=\"40\" y=\"50\" font-family=\"'Cormorant Garamond', Caladea, Georgia, serif\" font-size=\"25\" font-weight=\"700\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003eWhat phosphorus does to a re-used soil\u003c\/text\u003e\n\u003ctext x=\"40\" y=\"78\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003eSoil solution phosphorus, mg\/L, over four grows in the same soil\u003c\/text\u003e\n\u003crect x=\"250\" y=\"110\" width=\"400\" height=\"180.0\" fill=\"#C5A55A\" opacity=\"0.13\"\u003e\u003c\/rect\u003e\n\u003cline x1=\"250\" y1=\"290.0\" x2=\"650\" y2=\"290.0\" stroke=\"#C5A55A\" stroke-width=\"1.3\" stroke-dasharray=\"5 4\"\u003e\u003c\/line\u003e\n\u003ctext x=\"258\" y=\"282.0\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"600\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003esurplus — zinc \u0026amp; iron increasingly tied up\u003c\/text\u003e\n\u003crect x=\"250\" y=\"312.5\" width=\"400\" height=\"11.2\" fill=\"#4a7a5e\" opacity=\"0.18\"\u003e\u003c\/rect\u003e\n\u003ctext x=\"258\" y=\"323.25\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11\" font-weight=\"600\" fill=\"#4a7a5e\" text-anchor=\"start\"\u003e25–30 — all a plant needs\u003c\/text\u003e\n\u003cline x1=\"250\" y1=\"380\" x2=\"650\" y2=\"380\" stroke=\"#1B3D2F\" stroke-width=\"1.3\"\u003e\u003c\/line\u003e\n\u003ctext x=\"250.0\" y=\"406\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003eGrow 1\u003c\/text\u003e\n\u003ctext x=\"383.33333333333337\" y=\"406\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003eGrow 2\u003c\/text\u003e\n\u003ctext x=\"516.6666666666667\" y=\"406\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003eGrow 3\u003c\/text\u003e\n\u003ctext x=\"650.0\" y=\"406\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003eGrow 4\u003c\/text\u003e\n\u003cpolyline points=\"250,312.5 383,263.0 517,204.5 650,146.0\" fill=\"none\" stroke=\"#6b5a3e\" stroke-width=\"3\"\u003e\u003c\/polyline\u003e\n\u003ccircle cx=\"250\" cy=\"312.5\" r=\"5\" fill=\"#6b5a3e\"\u003e\u003c\/circle\u003e\n\u003ctext x=\"250.0\" y=\"300.5\" font-family=\"'Cormorant Garamond', Caladea, Georgia, serif\" font-size=\"14\" font-weight=\"700\" fill=\"#6b5a3e\" text-anchor=\"middle\" font-style=\"italic\"\u003e30\u003c\/text\u003e\n\u003ccircle cx=\"383\" cy=\"263.0\" r=\"5\" fill=\"#6b5a3e\"\u003e\u003c\/circle\u003e\n\u003ctext x=\"383.33333333333337\" y=\"251.0\" font-family=\"'Cormorant Garamond', Caladea, Georgia, serif\" font-size=\"14\" font-weight=\"700\" fill=\"#6b5a3e\" text-anchor=\"middle\" font-style=\"italic\"\u003e52\u003c\/text\u003e\n\u003ccircle cx=\"517\" cy=\"204.5\" r=\"5\" fill=\"#6b5a3e\"\u003e\u003c\/circle\u003e\n\u003ctext x=\"516.6666666666667\" y=\"192.5\" font-family=\"'Cormorant Garamond', Caladea, Georgia, serif\" font-size=\"14\" font-weight=\"700\" fill=\"#6b5a3e\" text-anchor=\"middle\" font-style=\"italic\"\u003e78\u003c\/text\u003e\n\u003ccircle cx=\"650\" cy=\"146.0\" r=\"5\" fill=\"#6b5a3e\"\u003e\u003c\/circle\u003e\n\u003ctext x=\"650.0\" y=\"134.0\" font-family=\"'Cormorant Garamond', Caladea, Georgia, serif\" font-size=\"14\" font-weight=\"700\" fill=\"#6b5a3e\" text-anchor=\"middle\" font-style=\"italic\"\u003e104\u003c\/text\u003e\n\u003cpolyline points=\"250,319.2 383,319.2 517,317.0 650,319.2\" fill=\"none\" stroke=\"#1B3D2F\" stroke-width=\"3.5\"\u003e\u003c\/polyline\u003e\n\u003ccircle cx=\"250\" cy=\"319.2\" r=\"5\" fill=\"#1B3D2F\"\u003e\u003c\/circle\u003e\n\u003ccircle cx=\"383\" cy=\"319.2\" r=\"5\" fill=\"#1B3D2F\"\u003e\u003c\/circle\u003e\n\u003ccircle cx=\"517\" cy=\"317.0\" r=\"5\" fill=\"#1B3D2F\"\u003e\u003c\/circle\u003e\n\u003ccircle cx=\"650\" cy=\"319.2\" r=\"5\" fill=\"#1B3D2F\"\u003e\u003c\/circle\u003e\n\u003ccircle cx=\"52\" cy=\"150\" r=\"5\" fill=\"#6b5a3e\"\u003e\u003c\/circle\u003e\n\u003ctext x=\"66\" y=\"148\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13.5\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003eFeed with P\u003c\/text\u003e\n\u003ctext x=\"66\" y=\"166\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13.5\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003ebundled in\u003c\/text\u003e\n\u003ctext x=\"66\" y=\"184\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003e(most brands)\u003c\/text\u003e\n\u003ccircle cx=\"52\" cy=\"300\" r=\"5\" fill=\"#1B3D2F\"\u003e\u003c\/circle\u003e\n\u003ctext x=\"66\" y=\"298\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13.5\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003eDr Forest —\u003c\/text\u003e\n\u003ctext x=\"66\" y=\"316\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13.5\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003eP as a separate\u003c\/text\u003e\n\u003ctext x=\"66\" y=\"334\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003echarge, cut to ⅓\u003c\/text\u003e\n\u003ctext x=\"66\" y=\"350\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003eon re-use\u003c\/text\u003e\n\u003ctext x=\"40\" y=\"448\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003ePhosphorus is slow: only ~a third releases per grow, the rest banks. Put it in the feed and re-amend, and it\u003c\/text\u003e\n\u003ctext x=\"40\" y=\"464\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003eclimbs every cycle — competing with iron and zinc, and leaving a loaded soil that never finishes clean.\u003c\/text\u003e\n\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"drf-callout-dark\"\u003e\n\u003ch4\u003eEither way, you pay for it\u003c\/h4\u003e\n\u003cp\u003eIn a living soil the phosphorus stays put. Bundled into an all-in-one feed, you cannot turn it down without starving the nitrogen and potash the plant still needs — so on a reused soil it only ever climbs, when all you actually needed to replace was nitrogen and potassium. The soil gets harder to run each year, not easier.\u003c\/p\u003e\n\u003cp\u003eIn a soluble mineral feed the phosphorus you do not need just washes out — expensive run-off, and a pollution problem, for no benefit to the plant.\u003c\/p\u003e\n\u003cp\u003eDr Forest keeps phosphorus in a one-time charge instead: top up nitrogen and potassium by the week, and the banked phosphorus holds steady at what the plant actually uses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-callout\"\u003e\n\u003ch4\u003eDr Forest keeps it separate — so the soil lasts\u003c\/h4\u003e\n\u003cp\u003ePhosphorus lives in a one-time charge, worked in once and never fed again. On a second or third grow you take just \u003cem\u003ea third\u003c\/em\u003e of the charge — because last year's is still banked — while nitrogen, potash, calcium and magnesium carry on at full strength. Phosphorus stays flat at the ~27 mg\/L the plant actually needs, the soil never loads up, and it finishes clean grow after grow. Our bloom feed carries \u003cem\u003e0.4% phosphate\u003c\/em\u003e; a typical \"bloom\" amendment carries \u003cem\u003e5–8%\u003c\/em\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhy the charge goes in a week before planting\u003c\/h3\u003e\n\u003cp\u003ePhosphorus is slow, so you add it \u003cem\u003ebefore\u003c\/em\u003e the plant needs it — not when it needs it. Worked into the soil at planting, it has the whole veg phase to weather, and it is ready and waiting the moment bloom demand climbs. Add the same slow phosphorus at the flip instead and it is barely started — still locked in the mineral through the weeks the plant wants it most, and only catching up long after flowering has peaked.\u003c\/p\u003e\n\u003cdiv style=\"margin:1.6em 0\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 790 510\" width=\"100%\" style=\"height:auto;max-width:720px;display:block;margin:0 auto\"\u003e\n\u003crect width=\"790\" height=\"510\" fill=\"#F5F2EC\"\u003e\u003c\/rect\u003e\n\u003ctext x=\"40\" y=\"52\" font-family=\"'Cormorant Garamond', Caladea, Georgia, serif\" font-size=\"23\" font-weight=\"700\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003eSlow phosphorus, added early, is ready for bloom\u003c\/text\u003e\n\u003ctext x=\"40\" y=\"79\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003ePhosphorus available to the plant (%), across a grow\u003c\/text\u003e\n\u003crect x=\"267\" y=\"150\" width=\"161\" height=\"242\" fill=\"#C5A55A\" opacity=\"0.16\"\u003e\u003c\/rect\u003e\n\u003ctext x=\"347.1666666666667\" y=\"142\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"10.5\" font-weight=\"600\" fill=\"#6b5a3e\" text-anchor=\"middle\" letter-spacing=\"1.2\"\u003eBLOOM — WHEN P IS WANTED MOST\u003c\/text\u003e\n\u003cline x1=\"66\" y1=\"392.0\" x2=\"548\" y2=\"392.0\" stroke=\"#d4cfc5\" stroke-width=\"1\" opacity=\"0.9\"\u003e\u003c\/line\u003e\n\u003ctext x=\"56\" y=\"396.0\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"end\"\u003e0%\u003c\/text\u003e\n\u003cline x1=\"66\" y1=\"271.0\" x2=\"548\" y2=\"271.0\" stroke=\"#d4cfc5\" stroke-width=\"1\" opacity=\"0.45\"\u003e\u003c\/line\u003e\n\u003ctext x=\"56\" y=\"275.0\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"end\"\u003e50%\u003c\/text\u003e\n\u003cline x1=\"66\" y1=\"150.0\" x2=\"548\" y2=\"150.0\" stroke=\"#d4cfc5\" stroke-width=\"1\" opacity=\"0.45\"\u003e\u003c\/line\u003e\n\u003ctext x=\"56\" y=\"154.0\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"end\"\u003e100%\u003c\/text\u003e\n\u003ctext x=\"66.0\" y=\"416\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003ewk 0\u003c\/text\u003e\n\u003ctext x=\"146.33333333333331\" y=\"416\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003ewk 2\u003c\/text\u003e\n\u003ctext x=\"226.66666666666666\" y=\"416\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003ewk 4\u003c\/text\u003e\n\u003ctext x=\"307.0\" y=\"416\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003ewk 6\u003c\/text\u003e\n\u003ctext x=\"387.3333333333333\" y=\"416\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003ewk 8\u003c\/text\u003e\n\u003ctext x=\"467.6666666666667\" y=\"416\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003ewk 10\u003c\/text\u003e\n\u003ctext x=\"548.0\" y=\"416\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"11.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"middle\"\u003ewk 12\u003c\/text\u003e\n\u003cline x1=\"66\" y1=\"150\" x2=\"66\" y2=\"392\" stroke=\"#1B3D2F\" stroke-width=\"1\" stroke-dasharray=\"3 3\" opacity=\"0.4\"\u003e\u003c\/line\u003e\n\u003ctext x=\"70.0\" y=\"384\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"10.5\" font-weight=\"500\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003eworked in\u003c\/text\u003e\n\u003cpolyline points=\"66.0,392.0 86.1,392.0 106.2,392.0 126.2,392.0 146.3,392.0 166.4,392.0 186.5,392.0 206.6,392.0 226.7,392.0 246.8,392.0 266.8,392.0 286.9,348.1 307.0,312.2 327.1,282.8 347.2,258.7 367.2,239.0 387.3,222.9 407.4,209.7 427.5,198.9 447.6,190.0 467.7,182.8 487.8,176.8 507.8,172.0 527.9,168.0 548.0,164.7\" fill=\"none\" stroke=\"#6b5a3e\" stroke-width=\"2.6\" stroke-dasharray=\"7 5\"\u003e\u003c\/polyline\u003e\n\u003cpolyline points=\"66.0,392.0 86.1,329.3 106.2,282.8 126.2,248.4 146.3,222.9 166.4,204.0 186.5,190.0 206.6,179.6 226.7,172.0 246.8,166.3 266.8,162.0 286.9,158.9 307.0,156.6 327.1,154.9 347.2,153.6 367.2,152.7 387.3,152.0 407.4,151.5 427.5,151.1 447.6,150.8 467.7,150.6 487.8,150.4 507.8,150.3 527.9,150.2 548.0,150.2\" fill=\"none\" stroke=\"#1B3D2F\" stroke-width=\"3.8\"\u003e\u003c\/polyline\u003e\n\u003ccircle cx=\"560\" cy=\"152\" r=\"4\" fill=\"#1B3D2F\"\u003e\u003c\/circle\u003e\n\u003ctext x=\"570\" y=\"150.42000000000002\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13\" font-weight=\"700\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003eWorked in\u003c\/text\u003e\n\u003ctext x=\"570\" y=\"167.42000000000002\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13\" font-weight=\"700\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003eat planting —\u003c\/text\u003e\n\u003ctext x=\"570\" y=\"183.42000000000002\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003eready for bloom\u003c\/text\u003e\n\u003ccircle cx=\"560\" cy=\"223\" r=\"4\" fill=\"#6b5a3e\"\u003e\u003c\/circle\u003e\n\u003ctext x=\"570\" y=\"220.60000000000002\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13\" font-weight=\"700\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003eAdded at\u003c\/text\u003e\n\u003ctext x=\"570\" y=\"237.60000000000002\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"13\" font-weight=\"700\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003ethe flip —\u003c\/text\u003e\n\u003ctext x=\"570\" y=\"253.60000000000002\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003etoo late\u003c\/text\u003e\n\u003ctext x=\"40\" y=\"458\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003ePhosphorus is slow, so you add it before it is needed — not when it is needed. Worked into the soil at planting,\u003c\/text\u003e\n\u003ctext x=\"40\" y=\"476\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12.5\" font-weight=\"400\" fill=\"#6b5a3e\" text-anchor=\"start\"\u003eit has the whole veg phase to build, and it sits near maximum exactly when bloom demand peaks.\u003c\/text\u003e\n\u003ctext x=\"40\" y=\"494\" font-family=\"'Jost', Carlito, Arial, sans-serif\" font-size=\"12.5\" font-weight=\"600\" fill=\"#1B3D2F\" text-anchor=\"start\"\u003eAdd the same slow phosphorus at the flip and it is still weathering long after the plant wanted it.\u003c\/text\u003e\n\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch3\u003eThe phosphorus charge\u003c\/h3\u003e\n\u003cdiv class=\"drf-ing\"\u003e\n\u003cspan class=\"num\"\u003eA\u003c\/span\u003e\u003cstrong\u003eBone meal — 3.5-18.5\u003c\/strong\u003e\u003cp\u003eFinely ground and steamed. A biological apatite, so soil acid and biology break it down readily. The more reliable of the two: faster, less fussy about pH, more forgiving if your soil drifts. It carries a little nitrogen of its own, which nudges a build gently towards yield.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-ing\"\u003e\n\u003cspan class=\"num\"\u003eB\u003c\/span\u003e\u003cstrong\u003eMicronised rock phosphate — 31% P₂O₅, 46% CaO\u003c\/strong\u003e\u003cp\u003eThe plant-based choice, and nitrogen-free — so it holds the flower at its leanest, the flavour build. Ground fine so soil biology and root acids can weather it. Slower than bone meal and far more dependent on an acidic soil, so keep the pH near 6.2 and take mycorrhizal fungi with it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-panel\" id=\"rf-p3\"\u003e\n\u003ch3\u003eRates\u003c\/h3\u003e\n\u003cdiv class=\"drf-rate\"\u003e\n\u003ch5\u003ePhosphorus charge — bone meal\u003c\/h5\u003e\n\u003cp\u003e\u003cem\u003e9g per litre of soil.\u003c\/em\u003e Mixed through the soil a week before planting. Once per cycle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-rate\"\u003e\n\u003ch5\u003ePhosphorus charge — rock phosphate\u003c\/h5\u003e\n\u003cp\u003e\u003cem\u003e12g per litre of soil.\u003c\/em\u003e Higher than bone meal, because it releases more slowly and depends more on soil acid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-rate\"\u003e\n\u003ch5\u003eReused soil\u003c\/h5\u003e\n\u003cp\u003e\u003cem\u003eA third of the charge.\u003c\/em\u003e Blends stay at full strength.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-rate\"\u003e\n\u003ch5\u003eVeg\u003c\/h5\u003e\n\u003cp\u003e5.6g per litre across the growing phase (4.7g lean for flavour, 6.5g for maximum yield). Top-dressed weekly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-rate\"\u003e\n\u003ch5\u003eBloom\u003c\/h5\u003e\n\u003cp\u003e8g per litre across flowering (6.7g lean for flavour, 8.5g for maximum yield, with a mid-flower nitrogen booster). Top-dressed weekly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-rate\"\u003e\n\u003ch5\u003eThe finish\u003c\/h5\u003e\n\u003cp\u003ePlain water for the last two to three weeks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eHow much for your soil\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSoil\u003c\/th\u003e\n\u003cth\u003eBone meal\u003c\/th\u003e\n\u003cth\u003eor Rock phos\u003c\/th\u003e\n\u003cth\u003eVeg\u003c\/th\u003e\n\u003cth\u003eBloom\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e80 litres\u003c\/td\u003e\n\u003ctd\u003e720g\u003c\/td\u003e\n\u003ctd\u003e960g\u003c\/td\u003e\n\u003ctd\u003e448g\u003c\/td\u003e\n\u003ctd\u003e640g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e120 litres\u003c\/td\u003e\n\u003ctd\u003e1,080g\u003c\/td\u003e\n\u003ctd\u003e1,440g\u003c\/td\u003e\n\u003ctd\u003e672g\u003c\/td\u003e\n\u003ctd\u003e960g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200 litres\u003c\/td\u003e\n\u003ctd\u003e1,800g\u003c\/td\u003e\n\u003ctd\u003e2,400g\u003c\/td\u003e\n\u003ctd\u003e1,120g\u003c\/td\u003e\n\u003ctd\u003e1,600g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eStandard (Balanced) build. On reused soil, take a third of the phosphorus charge and leave the blends as they are.\u003c\/p\u003e\n\u003cdiv class=\"drf-callout-dark\"\u003e\n\u003ch4\u003eGet your pH right or none of it works\u003c\/h4\u003e\n\u003cp\u003eAim for \u003cem\u003e6.2 to 6.5\u003c\/em\u003e. Slightly acidic soil is what dissolves the phosphorus charge — above about 6.8 the release slows sharply, and no amount of extra phosphorus will fix a pH problem.\u003c\/p\u003e\n\u003cp\u003eIf you have chosen rock phosphate, aim for \u003cem\u003e6.2\u003c\/em\u003e. It leans on soil acid far more than bone meal does, and it carries calcium and a little carbonate that gently nudge pH upward — the direction that slows its own release. Check your pH mid-cycle rather than assuming it has held.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-panel\" id=\"rf-p4\"\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q1\"\u003e\u003clabel for=\"rf-q1\"\u003eWhat do I reorder for my second grow?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eVeg and Bloom at full strength, and only a third of the phosphorus charge. Last year's phosphorus is still banked in the soil, so you top it up rather than starting again. Add compost to replace the organic matter and you are away.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q2\"\u003e\u003clabel for=\"rf-q2\"\u003eWhy does reused soil often get worse each year?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eUsually phosphorus. A complete feed puts phosphorus in every scoop, and because it is slow-release it banks in the soil faster than plants use it. By the third year the soil is loaded with it, which competes with zinc and iron for uptake and quietly caps results. And you cannot fix it — turning the phosphorus down would starve the nitrogen. Keeping phosphorus as a separate charge is what lets you cut it back while everything else stays at full strength.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q3\"\u003e\u003clabel for=\"rf-q3\"\u003eI am feeding for maximum yield. What extra do I need?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eA little more Veg and Bloom, plus a nitrogen booster in mid-flower — the nitrogen is what adds weight. \u003cem\u003eNot\u003c\/em\u003e more phosphorus, and not a big jump in the blends: potash and magnesium have ceilings you do not want to cross. The charge is sized by soil volume, so it does not change.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q4\"\u003e\u003clabel for=\"rf-q4\"\u003eBone meal or rock phosphate?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eBone meal is the more reliable: it releases faster, it is less fussy about pH, it forgives a drifting soil, and it adds a little nitrogen. Micronised rock phosphate is the plant-based, nitrogen-free option — it keeps the flower leanest for flavour, but it wants an acidic soil (6.2), mycorrhizal fungi, and a higher rate: 12g per litre against 9g.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q5\"\u003e\u003clabel for=\"rf-q5\"\u003eWhy is the rock phosphate rate higher?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eIt releases more slowly. Bone meal is a biological apatite — less crystalline, more readily broken down. Rock phosphate is a mineral apatite and needs more acid, more time and more help from soil fungi. Nothing is wasted: whatever does not release this cycle banks for the next.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q6\"\u003e\u003clabel for=\"rf-q6\"\u003eWhy do the blends have almost no phosphorus in them?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eBecause phosphorus does not belong in a feed. It is slow, it banks for years, and it only needs applying once. In every scoop it gets over-applied — and excess phosphorus gives no extra yield or quality, it just competes with zinc and iron and runs off.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q7\"\u003e\u003clabel for=\"rf-q7\"\u003eWill a bloom booster give me more flowers?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eNo. Studies consistently find high phosphorus does not increase flower numbers, and commercial flower growers run \u003cem\u003elow\u003c\/em\u003e phosphorus relative to nitrogen. Bloom boosters appear to work because they carry \u003cem\u003ereduced nitrogen\u003c\/em\u003e — it is the drop in nitrogen doing the work, not the phosphorus.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q8\"\u003e\u003clabel for=\"rf-q8\"\u003eWhen do I add the phosphorus charge?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eA week before planting. It needs moisture, time and soil acid to begin dissolving. Neither charge burns, so you can plant into it — but a week's head start means the phosphorus is ready when the roots are.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q9\"\u003e\u003clabel for=\"rf-q9\"\u003eCan I use these in an inert or soilless medium?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eNo. Every ingredient depends on soil biology to release it. In an inert medium there is nothing to do the work. These are soil products.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q10\"\u003e\u003clabel for=\"rf-q10\"\u003eDo I need mycorrhizal fungi?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eWith rock phosphate, near-essential — the fungi are the main biological route to weathering slow mineral phosphorus. With bone meal, still a real gain. See our \u003ca href=\"\/products\/mycorrhizal-fungi-powder-premium-endo-ecto-mycorrhizae-inoculant\"\u003emycorrhizal fungi powder\u003c\/a\u003e, and \u003ca href=\"\/blogs\/the-dr-forest-blog\/what-are-mycorrhizal-fungi-a-guide-for-uk-gardeners\"\u003ewhat mycorrhizal fungi do\u003c\/a\u003e for the background.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"rf-q11\"\u003e\u003clabel for=\"rf-q11\"\u003eIs it organic?\u003c\/label\u003e\u003cdiv class=\"drf-a a\"\u003eMade with organic ingredients and handcrafted in small batches. We do not hold a certification, so we do not claim one. The Veg and Bloom blends are plant-based; bone meal is animal-derived, so if you want a fully plant-based soil, choose rock phosphate.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-sign\"\u003e\n\u003cp\u003e\u003cstrong\u003eDr Forest\u003c\/strong\u003e — Made by Growers. Backed by Science.\u003c\/p\u003e\n\u003cp\u003eHandcrafted in Stockport, Greater Manchester. Named after Joe's grandfather Dr Forrest, a GP near Preston who kept a back-garden plot for the runner beans he turned into piccalilli.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-guides\" style=\"background:#0F2A1F;color:#F5F2EC;padding:22px 26px;margin:28px 0 0;border-left:4px solid #C5A55A;font-family:'Jost','Helvetica Neue',Arial,sans-serif;line-height:1.6\"\u003e\n\u003cdiv style=\"font-size:11px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:#C5A55A;margin-bottom:8px\"\u003eGrower guides\u003c\/div\u003e\n\u003cp style=\"margin:0 0 12px;color:#cfdcd3;font-size:15px\"\u003eEverything you need to run the programme, step by step:\u003c\/p\u003e\n\u003ca href=\"\/pages\/feeding-calculator\" style=\"color:#F5F2EC;font-weight:600;text-decoration:underline\"\u003eFeeding calculator\u003c\/a\u003e · \u003ca href=\"\/pages\/living-soil-feeding-schedule\" style=\"color:#F5F2EC;font-weight:600;text-decoration:underline\"\u003eFeeding schedule\u003c\/a\u003e · \u003ca href=\"\/pages\/phosphorus-and-flavour\" style=\"color:#F5F2EC;font-weight:600;text-decoration:underline\"\u003ePhosphorus \u0026amp; flavour: the science\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Dr Forest","offers":[{"title":"Veg 3.5-0.4-2.8 \/ 750g","offer_id":58263796089206,"sku":null,"price":10.99,"currency_code":"GBP","in_stock":true},{"title":"Veg 3.5-0.4-2.8 \/ 1.5kg","offer_id":58263796121974,"sku":null,"price":16.49,"currency_code":"GBP","in_stock":true},{"title":"Veg 3.5-0.4-2.8 \/ 3kg","offer_id":58263796154742,"sku":null,"price":27.99,"currency_code":"GBP","in_stock":true},{"title":"Veg 3.5-0.4-2.8 \/ 9kg","offer_id":58263796187510,"sku":null,"price":63.49,"currency_code":"GBP","in_stock":true},{"title":"Veg 3.5-0.4-2.8 \/ 18kg","offer_id":58263796220278,"sku":null,"price":103.99,"currency_code":"GBP","in_stock":true},{"title":"Bloom 1.9-0.4-3.6 \/ 750g","offer_id":58263796253046,"sku":null,"price":10.99,"currency_code":"GBP","in_stock":true},{"title":"Bloom 1.9-0.4-3.6 \/ 1.5kg","offer_id":58263796285814,"sku":null,"price":16.49,"currency_code":"GBP","in_stock":true},{"title":"Bloom 1.9-0.4-3.6 \/ 3kg","offer_id":58263796318582,"sku":null,"price":27.99,"currency_code":"GBP","in_stock":true},{"title":"Bloom 1.9-0.4-3.6 \/ 9kg","offer_id":58263796351350,"sku":null,"price":63.49,"currency_code":"GBP","in_stock":true},{"title":"Bloom 1.9-0.4-3.6 \/ 18kg","offer_id":58263796384118,"sku":null,"price":103.99,"currency_code":"GBP","in_stock":true},{"title":"Bone meal 3.5-18.5 \/ 750g","offer_id":58263796416886,"sku":null,"price":6.49,"currency_code":"GBP","in_stock":true},{"title":"Bone meal 3.5-18.5 \/ 1.5kg","offer_id":58263796449654,"sku":null,"price":10.49,"currency_code":"GBP","in_stock":true},{"title":"Bone meal 3.5-18.5 \/ 3kg","offer_id":58263796482422,"sku":null,"price":15.99,"currency_code":"GBP","in_stock":true},{"title":"Bone meal 3.5-18.5 \/ 9kg","offer_id":58263796515190,"sku":null,"price":30.99,"currency_code":"GBP","in_stock":true},{"title":"Bone meal 3.5-18.5 \/ 18kg","offer_id":58263796547958,"sku":null,"price":53.99,"currency_code":"GBP","in_stock":true},{"title":"Micronised rock phosphate \/ 750g","offer_id":58263796580726,"sku":null,"price":8.99,"currency_code":"GBP","in_stock":true},{"title":"Micronised rock phosphate \/ 1.5kg","offer_id":58263796613494,"sku":null,"price":14.0,"currency_code":"GBP","in_stock":true},{"title":"Micronised rock phosphate \/ 3kg","offer_id":58263796646262,"sku":null,"price":24.0,"currency_code":"GBP","in_stock":true},{"title":"Micronised rock phosphate \/ 9kg","offer_id":58263796679030,"sku":null,"price":56.49,"currency_code":"GBP","in_stock":true},{"title":"Micronised rock phosphate \/ 18kg","offer_id":58263796711798,"sku":null,"price":92.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0049\/8194\/8504\/files\/vegandbloom.png?v=1784249896","url":"https:\/\/www.drforest.co.uk\/products\/living-soil-refills-veg-bloom-bone-meal-micronised-rock-phosphate","provider":"Dr Forest","version":"1.0","type":"link"}