Happy Frog Tomato & Vegetable Fertilizer is specifically formulated for use on all veggies, tomato varieties, soft fruits and berries. The nitrogen, phosphorus and potassium in this blend supply the nutrition necessary to support the vegetative and flowering stages of plant growth. This fertilizer also contains calcium which helps prevent blossom end rot and builds stronger cell walls, boosting the plants ability to resist disease. Mycorrhizal fungi are included to help increase root efficiency, which may enhance nutrient uptake and water absorption. OMRI Listed