Q: I would like to know when and how and what type of fertilizer I should use for plum, apricot, peach and fig trees. My trees are 2 to 3 years old.
A:Β Once established, fruit trees need to be fertilized each spring to ensure that new healthy growth occurs and fruit will be large and tasty. For trees of 2 to 3 years of age, you can use 3/4 of a pound of a complete fertilizer that contains nitrogen, phosphorus and potassium. Spread the fertilizer evenly under the tree near the edge of the crown of the tree, also known as the drip line where rain falls and your drip irrigation should be installed. Timing your irrigation to coincide with fertilization will help the fertilizer reach the roots and protect the roots.
Peter L. Warren is the urban horticulture agent for the Pima County Cooperative Extension and the University of Arizona. Questions may be emailed to tucsongardensage@gmail.com
