Mycorrhizal fungi colonize roots within days, extending reach by up to 700% for improved water and nutrient absorption
Balanced 3-3-4 NPK analysis with sulfur and iron supports rapid growth, drought tolerance, and chlorophyll production
Eco-friendly, non-burning formula safe for use on edibles, ornamentals, trees, shrubs, and vegetables
Compact 8 oz pouch treats up to 192 plants, ideal for small gardens and trial use
Easy application at transplanting, seeding, or as a root drench for established plants
Summarized by Shop
Root Booster by Nutritive Solutions® Professional-Grade Mycorrhizal Root Development Formula — Trusted by Nurseries, Proven in Your Garden
BUDGET-FRIENDLY STARTER: 8 oz. Pouch
New to Root Booster by Plant Smart®? The 8 oz. pouch gives you the identical professional-grade Mycorrhizal formula in a compact, trial-friendly size. Same granula
Active Ingredient
Mycorrhizae (beneficial root colonizing fungi)
Guaranteed Analysis
3% total nitrogen, 3% available phosphate (P2O5), 4% soluble potash (K2O)
Micronutrients
Sulfur (S), Iron (Fe)
Application Method
Granules
Available Sizes
8 oz pouch (treats up to 192 plants), 1 gallon pouch