Big Bloom Liquid Plant Food is a carefully selected blend of fertilizers formulated to support multiple blooms and seed formations. This liquid plant food supplies nutrients that your plants can access immediately. Big Bloom contains bat guano and earthworm castings. Bat guano has been used for centuries as a fertilizer for all kinds of plants. Combined with earthworm castings they create a nutrient-rich mix that can help your plants thrive. General feeding: 4 tablespoons (60 mL) per gallon (4L) of water every other watering. Heavy feeding: 1/2 cup (120mL) per gallon (4L) of water once per week. Supplemental foliar feeding: 1 tablespoon (15 mL) per gallon (4 L) of water once per week during early stages of plant growth. Do not apply while plants are in direct light. Seedlings and transplants: 1 tablespoon (15 mL) per gallon (4 L) of water every other watering. 0 - 0.5 - 0.7. OMRI Listed and Registered CDFA Organic Input Material.