{"product_id":"boron-humate-granules","title":"Boron Humate Granules | 3.23% Boron Complexed with Humic Acid","description":"\u003c!-- Dr Forest - Boron Humate Granules Shopify product description --\u003e\n\u003c!-- Prefix: drf-bh- --\u003e\n\u003c!-- Design System v1.0 - square corners, Cormorant 400, gold accents, no border-radius --\u003e\n\u003c!-- Pure CSS radio-input tabs. No JavaScript. Shopify-safe. --\u003e\n\u003c!-- REVISION: audit corrections applied. Conservative rate set. --\u003e\n\u003c!-- OUTSTANDING: verify 3.23% B \/ 57.2% humic acids against the declared analysis on the bag before publishing. See comments marked VERIFY. --\u003e\n\u003cstyle\u003e\n  .drf-wrap *, .drf-wrap *::before, .drf-wrap *::after { box-sizing: border-box; margin: 0; padding: 0; }\n  .drf-wrap { font-family: 'Jost', sans-serif; font-weight: 400; color: #2c2c2c; font-size: 14px; line-height: 1.65; width: 100%; max-width: 100%; overflow: hidden; }\n  :root {\n    --drf-grn:        #1B3D2F;\n    --drf-grn-dark:   #0F2A1F;\n    --drf-grn-light:  #E8F0EB;\n    --drf-grn-mid:    #4a7a5e;\n    --drf-cream:      #F5F2EC;\n    --drf-gold:       #C5A55A;\n    --drf-gold-light: #FAF7F0;\n    --drf-muted:      #3A4A40;\n    --drf-white:      #FFFFFF;\n    --drf-border:     #d4cfc5;\n  }\n  .drf-wrap h2 { font-family: 'Cormorant Garamond', serif; font-weight: 400; font-size: 1.9em; color: var(--drf-grn); line-height: 1.25; margin-bottom: 0.5em; }\n  .drf-wrap h3 { font-family: 'Cormorant Garamond', serif; font-weight: 400; font-size: 1.35em; color: var(--drf-grn); margin: 1.4em 0 0.4em; }\n  .drf-wrap h4 { font-family: 'Jost', sans-serif; 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margin-bottom: 0.5em; }\n  .drf-refs ol { padding-left: 1.4em; margin: 0; }\n  .drf-refs li { margin-bottom: 0.35em; }\n\n  .drf-sep { border: none; border-top: 1px solid var(--drf-gold); margin: 1.5em auto; width: 200px; }\n\u003c\/style\u003e\n\u003cdiv class=\"drf-wrap\"\u003e\n\u003cdiv class=\"drf-tabs-wrap\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-bh-tabset\" id=\"drf-bh-tab1\" checked\u003e\n  \u003cinput type=\"radio\" name=\"drf-bh-tabset\" id=\"drf-bh-tab2\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-bh-tabset\" id=\"drf-bh-tab3\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-bh-tabset\" id=\"drf-bh-tab4\"\u003e\n  \u003cdiv class=\"drf-tab-labels\"\u003e\n    \u003clabel for=\"drf-bh-tab1\"\u003eOverview\u003c\/label\u003e\n    \u003clabel for=\"drf-bh-tab2\"\u003eThe Science\u003c\/label\u003e\n    \u003clabel for=\"drf-bh-tab3\"\u003eHow to Use\u003c\/label\u003e\n    \u003clabel for=\"drf-bh-tab4\"\u003eFAQ\u003c\/label\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"drf-panels\"\u003e\n\n  \u003c!-- TAB 1: OVERVIEW --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-bh-panel1\"\u003e\n    \u003ch2\u003eBoron humate granules, 3.23% boron complexed with humic acid, slow release\u003c\/h2\u003e\n\n    \u003c!-- VERIFY: badge figures must match the declared analysis on the bag --\u003e\n    \u003cdiv class=\"drf-badge-row\"\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003e3.23% Boron\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003e57% Humic Acids\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003e2–4 mm Granule\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-gold\"\u003eSlow Release\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003ePre-Flower Feed\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003eRoot-Zone Stable\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cp\u003e\u003cstrong\u003eBoron humate is boron fused with humic acid and pressed into a 2–4 mm granule, so the boron releases over a full growing season instead of washing out with the first heavy rain.\u003c\/strong\u003e Boron is the most leachable of the trace elements. In sandy or low-humus soils a soluble boron feed can be halfway to the water table before the plant has drawn on it. Binding it to humic acid holds it in the root zone.\u003c\/p\u003e\n    \u003cp\u003eBoron matters most at flowering. It governs pollen tube growth, seed and fruit set, sugar transport, and the cross-linking of pectin in cell walls. It also governs how efficiently the plant takes up and distributes calcium, which is why boron shortage and calcium disorders so often turn up together. Deficiency shows as poor fruit set, hollow or corky stems, distorted new growth and brittle leaves.\u003c\/p\u003e\n    \u003cp\u003eThis is a corrective input, not a routine feed. Because the safe window for boron is narrower than for any other nutrient, we would rather you tested the soil first than applied it on suspicion.\u003c\/p\u003e\n\n    \u003c!-- VERIFY: stat figures must match the declared analysis on the bag --\u003e\n    \u003cdiv class=\"drf-stats\"\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e3.23%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eBoron\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e57.2%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eHumic acids\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e2–4 mm\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eGranule size\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e1–2 g\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003ePer m²\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-callout-dark\"\u003e\n      \u003cspan class=\"drf-callout-title\"\u003eRead this before you apply\u003c\/span\u003e\n      \u003cp\u003eBoron has the narrowest safe window of any plant nutrient. The gap between sufficiency and toxicity is smaller than for any other element. Weigh the dose. Do not apply more often than the schedule below, and do not use it on a bed that has already had a boron-containing feed this season.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003ch3\u003eWhat it is for\u003c\/h3\u003e\n    \u003cul class=\"drf-uses\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003ePoor fruit set\u003c\/strong\u003e — flowers that open and drop without setting fruit, on tomatoes, courgettes, beans and top fruit.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSandy and free-draining soils\u003c\/strong\u003e — where soluble boron leaches out before the plant can use it.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eBrassicas and root crops\u003c\/strong\u003e — swede, turnip, beetroot and cauliflower are the classic boron-hungry group; brown or hollow hearts are the tell.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCalcium disorders that persist\u003c\/strong\u003e — where calcium is present in the soil but is not reaching the fruit.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eBlending into a granular feed\u003c\/strong\u003e — the granule size matches most dry fertilisers, so it mixes without separating out.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003cdiv class=\"drf-compare\"\u003e\n      \u003cdiv class=\"drf-compare-box\"\u003e\n        \u003ch4\u003eBoron humate granules\u003c\/h4\u003e\n        \u003cp\u003eBoron held on a humic acid backbone. Releases across the crop cycle as soil biology works on the humate. Resists leaching. Granular, so it can be broadcast or blended into a dry feed.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"drf-compare-box\"\u003e\n        \u003ch4\u003eSoluble borax or boric acid\u003c\/h4\u003e\n        \u003cp\u003eFully available on day one, gone within weeks on a light soil. Easy to overdose because the whole dose is plant-available at once. Useful for a fast correction, poor for season-long supply.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003chr class=\"drf-sep\"\u003e\n    \u003cp\u003e\u003cem\u003eMade by Growers. Backed by Science.\u003c\/em\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- TAB 2: THE SCIENCE --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-bh-panel2\"\u003e\n    \u003ch2\u003eWhy complex boron with humic acid\u003c\/h2\u003e\n    \u003cp\u003eBoron moves through soil as borate, a small uncharged or singly-charged species that most soils hold poorly. On a sandy, low-organic-matter soil it behaves much like nitrate: it goes where the water goes. Organic matter is the main thing that slows it down.\u003c\/p\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n      \u003cspan class=\"drf-mech-num\"\u003e01\u003c\/span\u003e\n      \u003ch4\u003eOrganic matter binds borate\u003c\/h4\u003e\n      \u003cp\u003eYermiyahu, Keren and Chen (1995, \u003cem\u003eSoil Science Society of America Journal\u003c\/em\u003e 59:405–409) showed that boron sorption rose as the organic matter content of the soil increased, holding borate against loss to drainage. Complexing boron onto humic acid before it ever reaches the soil applies the same chemistry at source.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n      \u003cspan class=\"drf-mech-num\"\u003e02\u003c\/span\u003e\n      \u003ch4\u003eBoron is structural, not catalytic\u003c\/h4\u003e\n      \u003cp\u003eBoron cross-links rhamnogalacturonan-II in the pectin network of the primary cell wall. Goldbach and Wimmer (2007, \u003cem\u003eJournal of Plant Nutrition and Soil Science\u003c\/em\u003e 170:39–48) set out how this cross-linking governs wall stability and membrane function. Without it, new tissue is brittle and malformed, which is why deficiency shows first in growing points.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n      \u003cspan class=\"drf-mech-num\"\u003e03\u003c\/span\u003e\n      \u003ch4\u003ePollination is the sensitive window\u003c\/h4\u003e\n      \u003cp\u003eBrown and colleagues (2002, \u003cem\u003ePlant Biology\u003c\/em\u003e 4:205–223) reviewed boron in plant biology and identified pollen germination and pollen tube elongation as among the most boron-sensitive processes in the plant. A shortfall at flowering costs yield even where vegetative growth looks fine.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n      \u003cspan class=\"drf-mech-num\"\u003e04\u003c\/span\u003e\n      \u003ch4\u003eLow boron is a whole-plant problem\u003c\/h4\u003e\n      \u003cp\u003eDell and Huang (1997, \u003cem\u003ePlant and Soil\u003c\/em\u003e 193:103–120) catalogued the physiological consequences of low boron: impaired root elongation, disrupted sugar transport, reduced calcium mobility. The symptoms are diffuse, which is part of why boron shortage is so often missed.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n      \u003cspan class=\"drf-mech-num\"\u003e05\u003c\/span\u003e\n      \u003ch4\u003eThe humate is not just a carrier\u003c\/h4\u003e\n      \u003cp\u003eAt 57.2% humic acids the carrier does work of its own. Rose and colleagues (2014, \u003cem\u003eAdvances in Agronomy\u003c\/em\u003e 124:37–89) pooled published trials of humic substances and found mean increases of roughly a fifth in both root and shoot dry weight. The caveat belongs with the figure: that same analysis found humic substances from compost sources outperformed those from lignite and brown coal, and this humate is leonardite-derived. Nardi and colleagues (2002, \u003cem\u003eSoil Biology \u0026amp; Biochemistry\u003c\/em\u003e 34:1527–1536) and Canellas and Olivares (2014) describe the mechanism, which is auxin-like activity on root cells.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-mech\"\u003e\n      \u003cspan class=\"drf-mech-num\"\u003e06\u003c\/span\u003e\n      \u003ch4\u003eThe toxicity margin is real\u003c\/h4\u003e\n      \u003cp\u003eGoldberg (1997, \u003cem\u003ePlant and Soil\u003c\/em\u003e 193:35–48) puts it plainly: the range between deficient and toxic boron is smaller than for any other nutrient element. Nable, Bañuelos and Paull (1997, \u003cem\u003ePlant and Soil\u003c\/em\u003e 193:181–198) reviewed what toxicity looks like when it does happen, and how slow and expensive it is to reverse in the field. Slow release widens the practical margin because the plant never meets the whole dose at once. It does not remove it.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-pullquote\"\u003eBoron shortage is common. Boron excess is harder to fix. Weigh the dose.\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-refs\"\u003e\n      \u003ch4\u003eReferences\u003c\/h4\u003e\n      \u003col\u003e\n        \u003cli\u003eBrown, P.H. et al. (2002). Boron in plant biology. \u003cem\u003ePlant Biology\u003c\/em\u003e 4:205–223.\u003c\/li\u003e\n        \u003cli\u003eCanellas, L.P. \u0026amp; Olivares, F.L. (2014). Physiological responses to humic substances as plant growth promoter. \u003cem\u003eChemical and Biological Technologies in Agriculture\u003c\/em\u003e 1:3.\u003c\/li\u003e\n        \u003cli\u003eDell, B. \u0026amp; Huang, L. (1997). Physiological response of plants to low boron. \u003cem\u003ePlant and Soil\u003c\/em\u003e 193:103–120.\u003c\/li\u003e\n        \u003cli\u003eGoldbach, H.E. \u0026amp; Wimmer, M.A. (2007). Boron in plants and animals: is there a role beyond cell-wall structure? \u003cem\u003eJournal of Plant Nutrition and Soil Science\u003c\/em\u003e 170:39–48.\u003c\/li\u003e\n        \u003cli\u003eGoldberg, S. (1997). Reactions of boron with soils. \u003cem\u003ePlant and Soil\u003c\/em\u003e 193:35–48.\u003c\/li\u003e\n        \u003cli\u003eNable, R.O., Bañuelos, G.S. \u0026amp; Paull, J.G. (1997). Boron toxicity. \u003cem\u003ePlant and Soil\u003c\/em\u003e 193:181–198.\u003c\/li\u003e\n        \u003cli\u003eNardi, S. et al. (2002). Physiological effects of humic substances on higher plants. \u003cem\u003eSoil Biology \u0026amp; Biochemistry\u003c\/em\u003e 34:1527–1536.\u003c\/li\u003e\n        \u003cli\u003eRose, M.T. et al. (2014). A meta-analysis and review of plant-growth response to humic substances. \u003cem\u003eAdvances in Agronomy\u003c\/em\u003e 124:37–89.\u003c\/li\u003e\n        \u003cli\u003eYermiyahu, U., Keren, R. \u0026amp; Chen, Y. (1995). Boron sorption by soil in the presence of composted organic matter. \u003cem\u003eSoil Science Society of America Journal\u003c\/em\u003e 59:405–409.\u003c\/li\u003e\n      \u003c\/ol\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- TAB 3: HOW TO USE --\u003e\n  \u003c!-- CONSERVATIVE RATE SET. Blend inclusion capped at 4% per bag directions. --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-bh-panel3\"\u003e\n    \u003ch2\u003eHow to use boron humate granules\u003c\/h2\u003e\n\n    \u003cdiv class=\"drf-callout drf-callout-gold\"\u003e\n      \u003cspan class=\"drf-callout-title\"\u003eWeigh it, do not scatter it\u003c\/span\u003e\n      \u003cp\u003eA level teaspoon of granules is roughly 4 g. The garden rate below is 1–2 g per square metre, so a quarter to half a level teaspoon spread across a whole square metre. This is not a product to apply by eye. A kitchen scale is accurate enough.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n      \u003ch4\u003eGeneral soil broadcast\u003c\/h4\u003e\n      \u003cp class=\"drf-rate-meta\"\u003e\u003cstrong\u003eRate\u003c\/strong\u003e 1–2 g per m²  ·  \u003cstrong\u003eFrequency\u003c\/strong\u003e Once per season\u003c\/p\u003e\n      \u003cp\u003eScatter evenly over the bed and rake in lightly, or apply to the surface of an established bed and water in. Use the lower end on loam and clay, the upper end on sand and other free-draining soils where leaching is the problem.\u003c\/p\u003e\n      \u003cp\u003e\u003cem\u003eAbsolute ceiling: 3 g per m² broadcast. Never exceed this, whatever the soil type.\u003c\/em\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n      \u003ch4\u003eBlended into a granular feed\u003c\/h4\u003e\n      \u003cp class=\"drf-rate-meta\"\u003e\u003cstrong\u003eRate\u003c\/strong\u003e Up to 4% of the feed by weight  ·  \u003cstrong\u003eFrequency\u003c\/strong\u003e At the main feed\u003c\/p\u003e\n      \u003cp\u003eMix up to 40 g of granules into every 1 kg of dry fertiliser before spreading. The 2–4 mm granule size matches most dry feeds, so the blend stays even rather than separating out in the bag.\u003c\/p\u003e\n      \u003cp\u003eThen watch the rate of the finished blend, not just the inclusion percentage. At 4% inclusion, apply no more than 50 g of blend per square metre. That puts 2 g of boron humate on the ground, which is where you want to be.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n      \u003ch4\u003ePre-flower application on fruiting crops\u003c\/h4\u003e\n      \u003cp class=\"drf-rate-meta\"\u003e\u003cstrong\u003eRate\u003c\/strong\u003e 1 g per m², or 0.3 g per established plant  ·  \u003cstrong\u003eFrequency\u003c\/strong\u003e Once, before flowering\u003c\/p\u003e\n      \u003cp\u003eApply two to four weeks before flowers open on tomatoes, courgettes, beans, top fruit and soft fruit. Because release is gradual, the boron needs to be in the ground ahead of the flowering window rather than during it.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-rate\"\u003e\n      \u003ch4\u003eBrassicas and root crops\u003c\/h4\u003e\n      \u003cp class=\"drf-rate-meta\"\u003e\u003cstrong\u003eRate\u003c\/strong\u003e 2 g per m²  ·  \u003cstrong\u003eFrequency\u003c\/strong\u003e Once at bed preparation\u003c\/p\u003e\n      \u003cp\u003eSwede, turnip, beetroot and cauliflower have the highest boron requirement of the common garden crops, and brown heart in swede and hollow stem in cauliflower are the classic symptoms. Work into the top 100–150 mm before sowing or planting out.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-callout-dark\"\u003e\n      \u003cspan class=\"drf-callout-title\"\u003eBanded and spot applications\u003c\/span\u003e\n      \u003cp\u003eApplying around individual plants or in a band concentrates the dose into a fraction of the bed area, so the ceiling is lower. Do not exceed the equivalent of \u003cstrong\u003e1.5 g per m²\u003c\/strong\u003e where the granules are banded or placed around individual plants rather than spread across the whole surface.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003ch3\u003eApplying it\u003c\/h3\u003e\n    \u003col class=\"drf-steps\"\u003e\n      \u003cli\u003eWeigh the dose for the area. Do not estimate. A kitchen scale is accurate enough.\u003c\/li\u003e\n      \u003cli\u003eScatter evenly across the whole area rather than concentrating it near stems or crowns.\u003c\/li\u003e\n      \u003cli\u003eRake into the top few centimetres if the bed is empty, or leave on the surface if planted.\u003c\/li\u003e\n      \u003cli\u003eWater in. The granule needs moisture and soil biology to begin releasing.\u003c\/li\u003e\n      \u003cli\u003eNote the date. One application per bed per season is the limit.\u003c\/li\u003e\n    \u003c\/ol\u003e\n\n    \u003cdiv class=\"drf-callout-dark\"\u003e\n      \u003cspan class=\"drf-callout-title\"\u003eDo not stack boron sources\u003c\/span\u003e\n      \u003cp\u003eIf you are already using a feed that contains boron, whether that is a trace element mix, a cal-mag product, or a compound fertiliser listing boron on the label, do not add this on top in the same season. Boron accumulates. Symptoms of excess are leaf margin scorch and tip burn on older leaves first.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"drf-callout\"\u003e\n      \u003cspan class=\"drf-callout-title\"\u003eWorks alongside\u003c\/span\u003e\n      \u003cp\u003ePair with \u003ca href=\"\/products\/humic-acid-flakes\"\u003eHumic Acid Flakes\u003c\/a\u003e where you want an immediate soluble humic input for drenching or fertigation alongside the slow-release granule. \u003ca href=\"\/products\/organic-fulvic-acid-powder-natural-bio-stimulant-chelator-99\"\u003eFulvic Acid Powder\u003c\/a\u003e is the foliar-friendly chelator of the pair. Neither contains boron, so neither stacks with this product.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- TAB 4: FAQ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-bh-panel4\"\u003e\n    \u003ch2\u003eQuestions\u003c\/h2\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-bh-faq1\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-bh-faq1\"\u003eWhat is boron humate?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eBoron chemically complexed with humic acid and granulated at 2–4 mm. It carries 3.23% boron and 57.2% humic acids. The humic acid holds the boron against leaching, so it feeds the plant across a season rather than in a single pulse.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-bh-faq2\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-bh-faq2\"\u003eWhy not just use borax?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eBorax is fully soluble, so on a light soil most of it can leach past the roots within a few weeks of rain. It also delivers the entire dose at once, which is the main route to boron toxicity in gardens. Boron humate trades that immediacy for persistence. If you have a diagnosed acute deficiency and need a fast correction, a soluble source has its place, but for season-long supply the humate form is the safer tool.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-bh-faq3\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-bh-faq3\"\u003eHow do I know if my soil is short of boron?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eThe reliable answer is a soil test, and boron is worth testing for specifically because it is not always included in a standard package. Visually: hollow or brown heart in swede and beetroot, hollow stem in cauliflower and broccoli, corky patches on apple and pear, flowers dropping without setting fruit, and distorted or brittle new growth. Sandy soils, chalky soils and soils that have been heavily limed are the usual suspects.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-bh-faq4\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-bh-faq4\"\u003eCan I overdo it?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes, and this is the one trace element where that warning is not boilerplate. The gap between enough and too much is narrower for boron than for any other essential nutrient. Weigh the dose, apply once per bed per season, and do not combine with another boron-containing feed. Excess shows as scorching along the leaf margins and at the tips of older leaves. Boron is also slow and difficult to leach back out of a soil once it is there, so the correction is a great deal harder than the mistake.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-bh-faq5\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-bh-faq5\"\u003eHow long does it take to work?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eIt is a slow-release granule, so it does not act like a foliar feed. Expect release to begin within a couple of weeks of watering in and to continue across the growing season. For fruiting crops, apply two to four weeks before flowering rather than at flowering.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-bh-faq6\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-bh-faq6\"\u003eIs it safe around children, pets and bees?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eIt has no pesticidal action and is worked into the soil rather than applied to flowers or foliage, so it is not something pollinators come into contact with in normal garden use. As with any concentrated fertiliser, store it out of reach of children and pets and keep it in its packaging. Water it in after applying so granules are not left loose on the surface.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-bh-faq7\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-bh-faq7\"\u003eIs it organic?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eNo, and we do not claim it. The humate fraction comes from leonardite, a mined fossil material, which sits outside organic certification. Certifiers that do permit boron inputs treat them as restricted, allowed only where a soil or leaf test has shown an actual need. That is a sensible standard to hold yourself to whether or not you are certified.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-bh-faq8\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-bh-faq8\"\u003eWhat is the difference between this and your humic acid products?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003e\n\u003ca href=\"\/products\/humic-acid-flakes\"\u003eHumic Acid Flakes\u003c\/a\u003e are a fully water-soluble humic concentrate for drenches, foliar sprays and fertigation, with no boron. This product is a granule that carries boron on a humic backbone and stays put in the soil. If you want the background on the humic side, we have written up \u003ca href=\"\/blogs\/the-dr-forest-blog\/what-is-humic-acid\"\u003ewhat humic acid actually is\u003c\/a\u003e and \u003ca href=\"\/blogs\/the-dr-forest-blog\/humic-vs-fulvic-acid\"\u003ehow humic and fulvic acid differ\u003c\/a\u003e.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-bh-faq9\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-bh-faq9\"\u003eCan I mix it with my other fertilisers?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes, as a dry blend at up to 4% of the feed by weight, which is 40 g per kilo. The granule size matches most dry fertilisers so it distributes evenly. Two things to check first. If the base feed already lists boron on the label, do not blend at all. And keep the finished blend to 50 g per square metre or less, so the boron humate going onto the soil stays within the 2 g per square metre working rate.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-bh-faq10\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-bh-faq10\"\u003eHow should I store it?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eCool, dry, sealed, out of direct sunlight and away from children and pets. Granules are hygroscopic and will clump if left open in a damp shed. Stored dry it keeps indefinitely.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-callout\"\u003e\n      \u003cspan class=\"drf-callout-title\"\u003eFurther reading\u003c\/span\u003e\n      \u003cp\u003e\u003ca href=\"\/blogs\/the-dr-forest-blog\/what-is-humic-acid\"\u003eWhat is humic acid?\u003c\/a\u003e · \u003ca href=\"\/blogs\/the-dr-forest-blog\/humic-acid-benefits-plants\"\u003eBenefits of humic acid for plants\u003c\/a\u003e · \u003ca href=\"\/blogs\/the-dr-forest-blog\/how-to-apply-humic-acid\"\u003eHow to apply humic acid\u003c\/a\u003e · \u003ca href=\"\/blogs\/the-dr-forest-blog\/humic-vs-fulvic-acid\"\u003eHumic vs fulvic acid\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Dr Forest","offers":[{"title":"250g","offer_id":58302777950582,"sku":null,"price":9.19,"currency_code":"GBP","in_stock":false},{"title":"500g","offer_id":58302777983350,"sku":null,"price":16.09,"currency_code":"GBP","in_stock":true},{"title":"1kg","offer_id":58302778016118,"sku":null,"price":22.99,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/www.drforest.co.uk\/products\/boron-humate-granules","provider":"Dr Forest","version":"1.0","type":"link"}