Garden Blog - Top Tropicals

Date: 3 Aug 2019

Agave amica? Polianthes tuberosa...

"A tuberose by any other name would smell as sweet..."
by Mark Hooten, the Garden Doc

A: Recently, we received a beautifully grown batch of Polianthes tuberosa, all in one gallon pots. These are commonly called Tuberose in the cut-flower trade. I was so happy to see them that I could hardly contain myself from exploding with joy! It had been such a number of years since I have even seen this plant that I had nearly forgotten about its existence. I first grew it as a little kid "up north", after seeing it listed in an old-fashioned mail-order catalogue, probably Gourney's. I remember doing things like mowing neighbors lawns and shoveling snow from driveways in-order to save enough money so that toward spring I could order a few things from those plant catalogues...
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Date: 3 Aug 2019

Grafted or seedling?

Photo: Mr Barcy meditating before planting Nutmeg seeds

Q: I planted an avocado seed and it sprouted quickly, it has been only a couple months and I already have a small plant. How soon will it produce fruit? Can I grow other tropical fruit from seed?

A: Unfortunately, some fruit trees, including varieties of avocado, mango, lychee, as well as apples and peaches - must be either grafted or air-layered in order to produce, for 2 main reasons:
- seedlings may take a very long time until fruiting, up to 10-15 years
- seedling gives no guarantee on the quality of the fruit or variety
These fruit trees should be propagated as "clones" - both grafted material or cuttings are actually copies of the mother plant and will keep the same fruit qualities. Grafted trees usually start producing immediately.
However there is a number of fruit trees that come true from seed, and take a very short time to start flowering. Jackfruit, Annonas (Sugar Apple, Guanabana, etc), Papaya, Icecream Bean, Eugenias start producing at a young age (3-4 years from seed).

Recommended fertilizers for fruit trees:

Fruit Festival Plant Food - Super Crop Booster
Mango-Food - Smart Release Fruit Tree Booster
SUNSHINE-Honey - for sweeter fruit
SUNSHINE SuperFood - microelement supplement

Date: 29 Jul 2019

Monster hybrids of Monstera: juvenile and mature

by Mark Hooten, the Garden Doc

Q: I am a rare plant collector and obtained a very interesing cultivar of Monstera from you that says it's a hybrid Monstera adansonii x obliqua. Is there a named hybrid? The leaves on this specimen that came in 1 gal pot are much larger than the plant I have grown in a 3 gal pot for a few years, under name of Monstera friedrichsthalii.

A: Due to their diversity, it is hard to find verified hybrids in the genus Monstera. M. friedrichsthalii is apparently an old Florida name for what is actually technically M. adansonii. The "primitive" juvenile growth is very different from the much larger more robust form that only occurs when it is allowed time to climb a tree, in which case the foliage becomes very different and much larger with many many more fenestrations (holes) of various sizes. If you visit our Garden Center, you can see the mature form climbing the oak tree in our Shade Garden in front of our office - we use this mature plant for propagation. If you take a cutting and don't let it attach to a bark/trunk and climb upwards, it will quickly revert to the wimpy juvenile form. Seems that even climbing a pole indoors, it never actually develops into the truly mature more complex adult stage. Some juvenile forms growing on a tree if given too much shade, do not develop into the larger mature form. Move it in more light and allow it to climb, and it will look very different, but still is the same plant under different conditions.

Date: 29 Jul 2019

When to fertilize and prune tropical fruit trees?

Q: Can tropical fruit trees (Soursop, Mango, Star fruit, etc) be given plant food any time of year? Also can they be trimmed this time of year/summer?

A: True tropical plants (including fruit trees) need plant food most of the year in real Tropics, where temperatures have very little fluctuations, and active growth season is close to 12 months a year. In subtropical areas when temperatures in winter drop below 65F, plant metabolism slows down, so it is recommended to fertilize only during the warmest period (March through November). So yes, Summer is the perfect time for fertilizing your trees; their metabolism is at the highest point and they can use more food!

Trim your fruit trees right after harvesting. Obviously, you don't want to prune branches before or during flowering or fruiting. The specific time of the year for pruning depends on the plant - every tree has its own flowering/fruiting season. However, avoid pruning right before winter: young shoots promoted by pruning are tender and can be cold damaged.

Recommended fertilizers for fruit trees:

Fruit Festival Plant Food - Super Crop Booster
Mango-Food - Smart Release Fruit Tree Booster
SUNSHINE-Honey - for sweeter fruit
SUNSHINE SuperFood - microelement supplement

Date: 24 Jul 2019

Perfect small tree for a pool area

Q: I need a tree for a space that is close to a pool and I don't want a tree that is shedding leaves all year long. I don't want it too big either. The canary tree caught my attention but I need to know if it is a tree that is dropping leaves all year. If it does then can you recommend another tree? I live in Fort Lauderdale.

A: Canary tree is a good choice. It is free-flowering pretty little tree. It is evergreen and doesn't shed leaves too much especially in your area with mild winter. However, keep in mind that every plant sheds leaves. Even evergreen trees replace old leaves with new ones. Some trees more than others. Flowers also have a seasonal drop. You may check the full list of compact flowering trees suitable for small spaces.

Another great choice is a Dwarf Tree Jasmine, Radermachera - also a free-flowering tree with rose-fragrant flowers and large, architectural leaves that hardly ever drop. It has very dense yet compact columnar shape, and is one of the greatest trees for smaller landscapes.

Recommended fertilizers and supplements:

Pink N Good Daily Plant Food - Flower Booster
Tropical Allure - Smart-Release Booster
SUNSHINE SuperFood - plant booster