Organic Silicon Fertilizers
-
Wollastonite Calcium Silicate
Discover Better Yields with VANSIL Wollastonite Unique among soil amendments, VANSIL wollastonite...
-
Diatomaceous Earth
Unleash Soluble Monosilicic Acid's Benefits Plants are capable of obtaining silicon in...
-
Soft Rock Phosphate
Soft Rock Phosphate with Soluble SiliconCalPhos soft rock phosphate delivers slow-release phosphorus...
Unlock Plant Health Benefits with Organic Silicon
Custom Hydro carries a curated selection of naturally derived organic silicon fertilizers and minerals for farms, gardens, and hydroponic systems. Silicon is a plant-beneficial element known to strengthen cell walls, enhance root and shoot growth, and improve resistance to pests, disease, and environmental stress.
Organic Silicon Sources
- Soluble Silica — fast-acting, ideal for fertigation & foliar application
- Calcium Silicate (Wollastonite) — slow-release soil amendment
- Diatomaceous Earth — natural pest suppression & soil conditioning
All products are naturally derived and suitable for organic production systems. Fast nationwide shipping available.
-
CalPhos POWDER 50 lb.Regular price $17.99Regular priceUnit price $0.36 per lb
-
VanSil CS-1 Wollastonite Calcium Silicate 50 lbRegular price $27.38Regular priceUnit price $0.55 per lb$41.07Sale price $27.38Grower Price -
CalPhos soft rock phosphate GRANULAR 50 lb.Regular price $17.99Regular priceUnit price $0.36 per lb
-
VanSil Wollastonite Calcium Silicate 4 lbRegular price $7.45Regular priceUnit price $1.86 per lb
$0.00Sale price $7.45 -
Triple Super Phosphate | 0-46-0 | 15% Ca...Regular price $40.26Regular priceUnit price $0.81 per lb$66.00Sale price $40.26Grower Price -
CalPhos Soft Rock Phosphate GRANULAR 20 lb.Regular price $10.50Regular priceUnit price $0.53 per lb
-
VanSil Wollastonite Calcium Silicate 1 lbRegular price $5.20Regular priceUnit price $5.20 per lb
$0.00Sale price $5.20 -
VanSil Wollastonite Calcium Silicate 20 lbRegular price $18.70Regular priceUnit price $0.94 per lb
$0.00Sale price $18.70 -
Sil-MATRIX LC Potassium Silicate 2.5 GallonRegular price $93.85Regular priceUnit price per$130.36Sale price $93.85Grower Price -
CalPhos Soft Rock Phosphate GRANULAR 4 lb.Regular price $5.00Regular priceUnit price $1.25 per lb
-
CalPhos soft rock phosphate 4 lb. STANDARD POWDERRegular price $5.00Regular priceUnit price $1.25 per lb
-
Fertoz Organic POWDERED Rock Phosphate FertilizerRegular price $32.04Regular priceUnit price per
$44.50Sale price $32.04Sold out -
CalPhos Soft Rock Phosphate GRANULAR 1 lb.Regular price $2.75Regular priceUnit price $2.75 per lb
-
DIATOMACEOUS EARTH 50 lb.Regular price $45.00Regular priceUnit price per$47.00Sale price $45.00Grower Price -
Diatomaceous Earth Food Grade with Free Duster -...Regular price $15.42Regular priceUnit price per$20.66Sale price $15.42Grower Price -
Red Lake Earth Stall Dry Granular 40 lb.Regular price $22.25Regular priceUnit price per
$0.00Sale price $22.25
Serving Arkansas, Kansas, Missouri and Oklahoma. Shipping Nationwide! Wholesale to the public!