How to Take Care of a Navel Orange Tree in Florida

Navel oranges have a protruding opening at the bottom.

Two major types of oranges are grown in the United States--the Valencia and the navel. Navel oranges are easy to peel and, unlike Valencias, have a protruding opening at the bottom of the fruit. In essence, the protrusion is the presence of a secondary fruit blossoming inside the main fruit. Florida navel oranges ripen for harvest between November and January, provided they have received proper care throughout the growing season.

Things You'll Need

• Water
• Soaker hose
• Fertilizer
• Mulch
• Pruning tool

Instructions

1. Water a navel orange tree at least once a week using a soaker hose. In Florida, where the average yearly rainfall is approximately 50 inches, weekly deep waterings are usually enough unless the weather is unseasonably dry.

2. Feed the tree a diet of 21-0-0 fertilizer. Follow the label instructions for allocation amounts and application methods. Most Florida navel orange trees benefit from a dose of fertilizer in the early spring, mid-summer and late summer.

3. Spread a three-inch layer of mulch around the tree. A layer of bark chips will improve drainage and reduce weed growth. Mulching also protects the navel orange tree roots from the hot Florida sun. Keep the mulch at least one foot from the trunk of the tree.

4. Remove dead or damaged branches using a pruning tool in the early spring, before new growth begins. In Florida, pruning season usually falls around late January or mid-February. Remove inward growing branches during this pruning. Do not remove more than 1/3 of the navel orange tree during any single pruning.

5. Consult a professional arborist if your navel orange tree shows signs of pest infestation or disease. Orange trees are susceptible to pests, especially leafminers. A professional will analyze the problem and choose the safest solution.

Tips & Warnings

• Keep plastic sheeting, blankets or sheets on hand for unexpected drops in temperature. Unexpected cold snaps can harm a navel orange tree. Drape the tree lightly to keep it warm.

• Refrain from over-watering a navel orange tree. If the soil feels moist at a depth of one inch, do not add more water.

References

• University of Florida IFAS/Sarasota County Extension: Florida Food Fare
• Floridata: Citrus Sinensis
• Texas A&M AgriLife Extension: Home Fruit Production - Oranges