Organic Sulfur Fertilizers
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Elemental Sulfur Fertilizers
Buy organic sulfur fertilizers today and get FAST shipping to your farm...
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Fast-Release Gypsum | Soil Amendment & Turf
Fast-release gypsum products deliver calcium and sulfur rapidly into the soil profile...
Give Your Farm the Sulfur It Needs — Organically
Custom Hydro carries a premium selection of OMRI-listed and naturally derived organic sulfur fertilizers for farms, gardens, and hydroponic systems. Sulfur is essential for protein synthesis, enzyme function, and soil pH correction — our organic sources deliver it without synthetic inputs.
Organic Sulfur Sources
- Elemental Sulfur — soil acidification & pH correction
- Wettable Sulfur Powder — fast-acting foliar & soil application
- Dusting Sulfur — broad-spectrum pest & disease suppression
- Sulfate Fertilizers — immediately plant-available sulfur
All products are suitable for certified organic production. Fast nationwide shipping available.
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Protassium+ SOP 3IX 0-0-53 Potassium Sulfate 50 lbRegular price $60.98Regular priceUnit price $1.22 per lb$91.70Sale price $60.98Grower Price -
ACG Valu-Fil 650 Solution Grade Gypsum 50 lb.Regular price $14.56Regular priceUnit price $0.29 per lb$21.90Sale price $14.56Grower Price -
Solution Grade Gypsum 4 lb. | Calcium SulfateRegular price $3.50Regular priceUnit price $0.88 per lb
$0.00Sale price $3.50 -
Protassium+ Organic SOP 0-0-50 Standard Fines | 50...Regular price $65.60Regular priceUnit price $1.31 per lb
$98.66Sale price $65.60Grower Price -
Solution Grade Gypsum 20 lb. | Calcium SulfateRegular price $12.47Regular priceUnit price $0.62 per lb
$0.00Sale price $12.47 -
Haifa BitterMag Magnesium Sulfate 50 lbRegular price $23.36Regular priceUnit price $0.47 per lb$45.00Sale price $23.36Grower Price -
Solution Grade Gypsum 1 lb. | Calcium SulfateRegular price $2.75Regular priceUnit price per
$0.00Sale price $2.75 -
Diamond K Premium 97 Powdered Gypsum 50 lb.Regular price $11.30Regular priceUnit price $0.23 per lb$17.08Sale price $11.30Grower Price -
Organic SOP 0-0-50 Standard Fines | 4 lbRegular price $15.45Regular priceUnit price per
$0.00Sale price $15.45 -
Yellow Jacket 90% Wettable Sulfur II Fungicide &...Regular price $51.40Regular priceUnit price $1.03 per lb$84.22Sale price $51.40Grower Price -
Pastille 99% Elem Sulfur - 50 lbRegular price $32.10Regular priceUnit price per$48.24Sale price $32.10Grower Price -
Organic SOP 0-0-50 Standard Fines | 1 lbRegular price $7.40Regular priceUnit price per
$0.00Sale price $7.40 -
Sul-Po-Mag K-Mag Langbeinite Fertilizer 50 lbRegular price $41.25Regular priceUnit price per$62.00Sale price $41.25Grower Price -
Organic SOP 0-0-50 Standard Fines | 20 lbRegular price $50.80Regular priceUnit price per
$0.00Sale price $50.80 -
Sulfate of Potash Ultra Fines | 0-0-50 |...Regular price $47.88Regular priceUnit price $0.96 per lb
$51.00Sale price $47.88Sold out
Serving Arkansas, Kansas, Missouri and Oklahoma. Shipping Nationwide! Wholesale to the public!