Rainbow Mix PRO™ Grow pushes the boundaries of what is possible in a powder/granular plant nutrient.A powerful blend of all natural ingredients & 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 & 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. Planting mixes, coco coir, native soils. Indoor/outdoor plants.Rainbow Mix PRO™ Grow is the ideal choice for all foliage plants. Promotes vigorous stem and leaf growth. Also makes an excellent “All Purpose” plant food.Also contains the following NON-PLANT FOOD INGREDIENTS: Mycorrhizal Fungi: Pisolithus tinctorius, Scleroderma citrinum, Scleroderma cepa, Rhizopogon luteolus, Rhizopogon fulvigleba, Rhizopogon villosulus, Rhizopogon amylopogon, Glomus intradices, Glomus etunicatum, Glomus aggregatum, Glomus mosseae, Glomus clarum, Glomus monosporum, Paraglomus brasilianum, Glasgaspora margarita. Beneficial Microbes: Bacillus subtilis, Bacillus megaterium, Azotobacter vinelandii, Rhizobium japonicum, Bacillus coagulans,Azotobacter chroococcum, Azospirillum lipoferum, Pseudomonas fluorescens, Bacillus laterosprorus, Azospirillum brasilense, Bacillus pumilis, Bacillus licheniforms, Lactobacillus acidophilus. Humic Acid from langbenite.N8.00% – P6.00% – K3.00%*Expiration dating applies only to the mycorrhizae and/or microbes.Does not apply to the actual fertilizing materials (active ingredients), which are not affected