Organic Boric Acid Fertilizer 17% Boron is a laboratory-grade boric acid (H₃BO₃) refined to 99.9% purity, delivering 17% elemental boron in a fully water-soluble crystalline form — one of the most concentrated boron sources available.
Boron is an essential micronutrient that supports cell wall structure, sugar transport, and pollination, with deficiency common in sandy, leached, and high-pH soils. Boric acid dissolves directly into plant-available borate ions with no conversion step, and stays available across the common soil pH range without chelation. One product covers soil broadcast, foliar spray, fertigation, and hydroponic feeding.
Boron has the narrowest sufficiency-to-toxicity window of any plant micronutrient, so precise dosing is essential — confirm deficiency with a soil or tissue test, start at the low end of recommended rates, and avoid broadcasting on boron-sensitive crops such as corn and beans. For fruiting crops, a pink-bud or pre-bloom foliar application supports fruit set.
CDFA registered and third-party lab tested for heavy metals, with results consistently well below required limits. Never exceed recommended rates; store sealed away from children, pets, and food.