Hydrofarm Rainbow Mix Pro Grow, 5 lbs Hydrofarm

Amazon.com Price: $48.74 (as of 15/11/2021 10:23 PST- Details)

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Rainbow Mix ProTM Grow pushes the boundaries of what is possible in a powder/granular plant nutrient. A powerful blend of all natural ingredients and 29 different strains of mycorrhizae & beneficial microbes designed for today’s demanding ‘High Performance Gardening’. Use as a pre-mix, top/side broadcast fertilizer, soil booster and plant tea. General use rates: 1-4 Tbsp per gallon or 1/4-1 cup per cubic foot of soil. General frequencies of use: Every 12 weeks throughout the growing season.