OSA★28 16oz (500mL) Plant Available Silicon - Original
OSA?28 Plant Available Silicon (as monosilicic acid) strengthens cell walls, increases nutrient uptake, and helps plants handle all kinds of stresses. Other silicates are not bioavailable and take time+microbes to become plant available. This makes OSA?28 the fastest option for delivering silicon directly into the plant cell walls! Silicon also has a synergy with calcium in building better plant structure. Many growers see increased calcium response when feeding with OSA?28.
Root drench: Mix 0.5ml per gallon of water every feeding from early vegetative through mid-bloom.
Foliar spray: Mix 4-8ml per gallon of water 1-2 times per week.
2 years when stored properly
Seal after use and store in a cool dark place.
Affordable! Higher concentration and lower MSRP than any true silicic acid product on the market.