Check the listing for details. Bonsai Fertilizer Granular Slow Release Highly Effective With Urea Nitrogen. Condition: Open box. Listed at 10.06 USD. Best quality 10-10-10 Granular (Color May Vary) Bonsai Fertilizer 6% nitrogen derived from UreaTime released Fertilizer, apply every 6-8 months on the surface of soil or just below soil level.Last for 6 months, Essential to keep your tree healthy and strong.Packed in a resealable zip lock bag.Available in 5 oz, 10oz and 1 lb bags. Enough for many Bonsai trees. Slow Release 10-10-10 Granular Bonsai Fertilizer. Apply once every 6-8 months. Fertilizing or feeding your Bonsai regularly is essential to keep your trees healthy and strong. Because Bonsai Plants are planted in pots they need to be fertilized Regularly in order to replenish the soil 's nutritional content. Instructions: Lift the moss of your bonsai and uniformly apply the fertilizer on the surface of the soil. Use approximately 1 heaping tablespoon per 10 inches of pot size. Free Shipping to all US States And Territories Free Shipping To All US States And Territories