Suståne® 50 lb. 4-6-4 Medium Grade All-Purpose Fertilizer brand_cropking UL and ULC certified

UL and ULC certified

while the various available sizes are great for a multitude of applications

In Smart Pot planters

more abundant vegetables

The Dosatron Nutrient Delivery System 14 GPM Unit is perfect for the indoor grower

Suståne® 50 lb. 4-6-4 Medium Grade All-Purpose Fertilizer brand_cropking UL and ULC certifiedSustne 4 6 4 fertilizer is an organic slow release fertilizer and soil builder ideally suited for plant establishment as vegetation starter for low P soils. Specifically formulated to be gentle on plants, making it a go to fertilizer for spreading with seed and applying to seedlings. It works by replenishing the soil with a rich supply of humus (stabilized organic matter) and the essential nutrients required for sound and long term fertility programs.