14-14-14 60% Nitroform is a premium balanced plant food with micronutrients and over 60% of the nitrogen from Nitroform. It provides uniform growth and sustained feeding for six to twelve months. It does not encourage flush growth like 100% available fertilizers, which can encourage insect activity. This formula is perfect for trees, shrubs, evergreens, flowers, vegetables, ferns, potted plants, ground cover, and bulbs.