Espoma CT8 Citrus Tone Fertilizer, 8-Pound An all natural and organic plant food enhanced with thousands of living microbes and is approved for organic gardening It is perfect for all citrus, fruit, and nut trees and provides a safe, continuous, and complete balanced feeding It helps in the development of the entire tree Citrus-tone is an all natural fertilizer For all citrus, fruit and nut trees Contains bio-tone, our patented blend of beneficial microbes Biologically enhances the natural plant food to ensure superior plant growth Comes in 8-pound bag