15-30-15 Dissovle in water before use and apply with water can. For flower gardens mix 1tbsp to 1 gal of water and soak soil with the mixture. apply as soon as transplants/ seeding are established. Repeat every 2-4 weeks during blooming. For flowering houseplants mix 1tsp per 1 gal of water and soak soil with themixture. Repeat every 4 weeks during blooming.