Navel Orange Tree
Details: Easily grown, Very fragrant
Growing Zone: 4 – 11 on the patio move inside before frost, 8 – 11 outdoors
Mature Height: 8 – 12 feet
Mature Width: 8 to 12 feet
Sunlight: Full Sun
Water Requirements: allow to dry out between watering’s.
Does Not Ship To: CA, WA, OR, AZ
Navel Orange tree need sufficient water for new growth, flowers and to produce fruit that have an extremely high, moisture content. When watering citrus at a rate to meet their needs, it is important for the container to be porous. In plastic pots, the top of the soil may appear dry when soil at the bottom of the pot is still wet. The plastic does not allow the roots at the bottom of the pot to retain sufficient oxygen and that often leads to rotting roots. That is why terracotta flower pots work so well, because they are porous and allow the roots to have moisture and oxygen at the same time.
The food or fertilizer that you supply for navel oranges can make a big difference in how well they grow. A complete fertilizer with micronutrients is important. Most soils have sufficient calcium, however, most potting soils do not. Also, many fertilizers are lacking calcium. An easy way to supply the extra calcium needed for good flower and fruit production is by adding eggshells to the soil. Eggshells left to dry naturally in a brown paper lunch bag, scrunched up and added to the soil is like “Mother Nature’s slow release calcium.” One other supplement that is very beneficial to citrus is potassium silicate. Potassium silicate makes the cell walls of the leaves much stronger and can make the plant more tolerant to drought, disease, and insects. This comes in liquid form by several different brand names, that you can mix with water or as greensand. Greensand is a natural product that is from certain locations often near the sea coast that naturally has potassium silicate in it, along with other trace minerals. These two supplements together can work like a magic potion for citrus plants grown in containers.