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BLOWOUT SALE! Specialty Nutrient & Root Inoculant. General Hydroponics SubCulture-B (0.1-0.04-0.02) is a biological inoculum containing a wide diversity of beneficial bacteria that will help increase the vitality and yield in all plants. Whether in soil or hydroponics, their proprietary blend of bacteria and trichoderma fungi colonize the root zone and media to form a symbiotic relationship with your plants. Root systems will increase, as well as nutrient absorption; thus creating bigger, healthier plants.

May be used with Sub Culture-M to create a diverse microbial community beneficial for plant health.

Available size: 150g Jar (5.29 oz)

Feed Chart – PDF
Material Safety Data Sheet (MSDS) – PDF


Regular Applications: Mix with pure (non-chlorinated) water and apply to root zone as follows: Normal use – mix 1 tsp (4 grams) per 5 gallons of water. Concentrated use – mix 1 tsp per 1 gallon of water. Use within 30 minutes of mixing. Apply weekly if desired.

Hydroponics: Add directly to reservoir at a rate of 1/2 tsp (2 grams) per 5 gallons of water with each nutrient change. Keep reservoir aerated for maximum benefit.

Soil or Media Applications: Blend with soil or growing media before planting. Add 1 Tbsp (about 12 grams) per 2 cubic feet of soil or growing media (potting mix, sphagnum moss, coco fiber, bulk rockwool, etc). Large Soil Applications: Add 1 Tbsp to planting hole before transplanting (trees, shrubs, etc).