Fertilizer for Banana Plants

The banana is not a tree, but a herbaceous perennial which may be grown for fruit. Banana trees are heavy feeders and benefit from regular organic fertilization.

Fertilization for Ornamental Use

Banana plants may be grown for ornamental use in interior spaces or in the landscape. Frequent organic fertilizing is necessary for optimum health. Well-composted organic material, including the remains of other bananas, is productive for the ornamental plant.

Fertilization for Edible Bananas

If the banana plant is grown for fruit production, special attention should be paid to the inclusion of potassium in fertilization, before and during fruit production. Potassium content in purchased fertilizer is indicated in the fertilizer analysis on the bag, the last number of the three digit series. Natural fertilizers such as fish emulsion and worm castings may be applied often.

Reduce Nitrogen Fertilizer

When the banana has started flowering, nitrogen fertilizer should be reduced. As with many plants, too much nitrogen at this stage may result in heavy foliage growth and little fruit production. Avoid chemical fertilizers if possible; these may cause the fruit to blacken.

References

• Tropica Mango Rare & Exotic Fruit Nursery: How Not to Kill Your Banana Tree (plant)
• University of Hawaii Cooperative Extension Service: Banana
• University of Florida Extension IFAS Extension: Banana Growing in the Florida Home Landscape