The Q&A Archives: Fertilizing Florida Orange Trees

Question: My aunt in Florida asked me to see if I could find out the best time to fertilize her orange trees. Can you help?

Answer: There is no magic formula for fertilizing citrus in Florida. Type of citrus, soil fertility and other factors all greatly affect the need for fertilizer.

Without a soil test of go by, I would suggest your aunt apply 1 cup of a 3-1-2 ratio fertilizer (such as 15-5-10) and 1/2 cup of Potassium Magnesium Sulfate (also called Sul-Po-Mag or K-Mag) per inch of trunk diameter every 4-6 weeks from February through July. Once the tree is 5 or 6 years old and depending on growth, she may choose to reduce the rate by 1/2 and the applications to every two months.

« Click to go to the homepage

» Ask a question of your own

Q&A Library Searching Tips

  • When singular and plural spellings differ, as in peony and peonies, try both.
  • Search terms are not case sensitive.

Today's site banner is by plantmanager and is called "Captivating Caladiums"