Healthy Plant Food: Q&A from Mr Booster

Why my Sapodilla is not fruiting?

Q: I bought a Sapodilla tree from you several years ago, Silas Woods. I live in Houston area. The tree grows and produces blossoms for fruits, but then they just dry up and fall off. To-date, I have not gotten any fruits off the tree. Is there a reason for this? I really want a fruiting tree because Sapodilla is one of my favorite fruits. I have attached pictures of the tree. Please help.

A: Silas Woods is a free-flowering variety and in favorable conditions it should produce fruit almost year round, considering warm temperatures. The fact that the tree is producing flowers indicates that it is strong, overall healthy and ready for production, but for some reason these flowers don't set fruit. There may be several reasons for such behavior.

1) Too high temperature and too low humidity
In Houston area, humidity should be good in summer. However, if temperatures stay above 90F for a long time, this may cause flower dry-n-drop.
Solution: try to move the potted tree into filtered light, or in a spot where it does not get direct burning sun during the hottest hours of the day (morning sun is the best)

2) Root bound.
Solution: check if the tree needs stepping up into a larger container.

3) Lack of certain nutrients that are responsible for proper fruit formation.
In particular, elements B (Boron), Mo (Molybdenum), and a few other micro-elements (Fe - iron, Cu - Copper, etc.). This is most likely the cause of a flower drop. This is very common reason for undeveloped fruit or lack of fruit in container-grown fruit trees. When grown in the ground, plants can reach out to all necessary elements in surrounding soil (considering soils are not too poor on necessary elements). In a pot, a supply of nutrients can be exhausted very quickly, so a quality fertilizer program is very important. Fertilizer must include all necessary nutrients in easy accessible form, and a plant must have their constant supply for proper development.
Solution: prescribe to your Sapodilla tree the following combination of plant food:
- SUNSHINE C-Cibus - Crop Nutrition Booster. It will provide well-balanced amounts of high absorption Nitrogen, as well as other macro-elements - to provide enough energy to the tree, plus a combination of all necessary micro-elements. It is safe to apply this fertilizer as frequent as with every watering, including winter time.
- SUNSHINE-Honey - sugar booster. This supplement has a high content of elements Mo and B - once the tree starts getting them on regular basis (a few times a year, according to the label), it will change its habit dropping flowers and/or premature fruit drop. As extra bonus, Sunshine Honey makes fruit sweeter by bringing sugars from all over the plant and concentrating them into fruit.

4) Lack of pollinating insects.
Solution: For most effective pollination, we always recommend to put some pieces of fruit under the tree, apple peels, or even banana peel. Those attract tiny beetles that are responsible for small flower pollination.

With winter time approaching, fruiting season is about to end, however, do not get discouraged and start the fertilizing program right away: this will bring up the plant into a healthy stage within a few months, and by next season it should be covered with fruit you like so much! Remember, Sunshine liquid fertilizers can be used year round, including winter, without a risk to burn roots or overdose, as long as you follow label instructions.

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Millingtonia hortensis - Tree Jasmine

By Onika Amell, tropical plant specialist

Q: Q: How fragrant is the Tree Jasmine (Millingtonia) and how tall does it grow?

A: Millingtonia hortensis, or Tree Jasmine, is such a beautiful flowering tree with long, white, slender and trumpet-shaped flowers with a perfume that wafts through the air. These trees are very sought after because they are so highly fragrant. They are fast-growing trees that in Nature (Burma) can easily reach a height of 40-50 feet, however here in SW Florida we have them growing about 20-25 ft. The tree flowers at night and then shed the flowers in the morning. The flowers are waxy and stay fresh for a long time. In India the flowers are picked up and braided for rituals. It flowers from October until the end of December. The tree is also known as the Cork Tree, as an inferior cork is processed from the corky bark. It is a fast growing, tall, straight tree with few branches and its popularity lies in its ornamental value and not in its shade-giving properties. Yet, once you've witnessed the profusion of white flowers, you will understand why. It is a sight to behold! Cork tree is very easy and can grow in a variety of soils. It requires full sunlight.

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Featured plant. Acacia sphaerocephala - Bulls-Horn Acacia

Acacia (Vachellia) sphaerocephala - Bulls-Horn

The name of this cool unusual tree comes from the shape of the thorns which do indeed resemble the horns of a bull! The tree has a strong, symbiotic relationship with a species of an ant, Pseudomyrmex sphaerocephala for which it is the obligate habitat. The ants act as caretakers for the tree, and clear the ground and keep it free of any other plants and even prune surrounding branches of other trees that threaten to outshade the acacia. Without the protection of the ant colony, the acacia tree would fall vulnerable to chewing insects such as beetles or caterpillars, and surrounding trees and shrubs would quickly outcompete the acacia without the maintenance work of the ants to keep the tree safe.

Check out this plant...

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