Garden Blog - Top Tropicals

Date: 25 Feb 2021

Healthy Plants: Q&A from Mr Booster

Dragon Fruit Magic Tricks

Q: I purchased two sweet red pitayas, that arrived and were planted on May 28, 2020, they were damaged but not serious. my question is this one pitaya is a beautiful green, and has grown 6or 8 " already, the other is bigger and is a grayish green and has not shown any sign of growth at all in six weeks, how long do I wait before I throw it out and buy another?

A: Being a cactus, sometimes Pitaya slows down its growth waiting for more favorable conditions. If one of your plants doesn't show any new growth, just give a it some more time and make sure the plant stays happy. To make pitaya happy, provide the following:
- Water. Unlike most cacti, Pitaya prefers regular watering (but not a wet soil). Make sure it is planted in well-drained media. Do not water again if soil remains moist, wait until it dries out on the surface. During hot weather, Pitaya enjoys light daily watering.
- Light. Unlike most cacti, Pitaya benefits from a filtered light especially while establishing. Try to create a temporary shade over the plant until it starts active growth (if grown in the ground), or move the pot in filtered light. Dull color or dry spots are signs of sun burn. Once the plant shows new growth, you may remove sun protection, or move the pot gradually into the full sun.
- Food. Pitayas are heavy feeders. Use the following fertilizer:
SUNSHINE C-Cibus - Crop Nutrition Booster

Q: I've been growing dragon fruit cuttings from Okinawa, Thailand and Vietnam for several years in pots and cannot get them to fruit. Any fertilizer suggestions? I live in Northern Virginia so I bring the massive pots in the garage under lights and a heater for the winter but back outside once the temperature warms up.

A: There is a little trick to get Dragon fruit to flowering and fruiting. This plant likes flowering when it is attached to a strong support. In commercial plantations, they use special trellises/frames made out of logs, but you can make one yourself using simple materials.
See article: Do-It-Yourself Support Structure for Dragon Fruit.
And of course, don't forget a special plant food for tropical fruit - Sunshine C-Cibus.
You can successfully get your Dragon fruits to fruit in pots, providing bright light in Summer. In Winter, keep the plants on a dry side to give them some rest and a chance to hibernate before the next fruiting season.

Date: 25 Feb 2021

Container mango - Condo varieties

Q: What are the good varieties of mango trees available for container grow? Can you please share the details?

A: There are some great varieties of Mango selected specifically for container culture, they even have a nick-name - "condo mangoes". They have compact growth habit and respond well to pruning to keep them in small size. Here are a few of our favorites that we currently have in stock:
Glenn
Ice Cream
Cotton Candy
Mallika
Manilita
Pram Kai Mai
Mun Kun Si
Maha Chinook
You can see more condo mangoes on this page.

Related articles:

How to grow a Dwarf Mango tree
Choosing the right Mango for your garden
10 secrets of successful Container Mango growing on a balcony.
Condo Mango

Date: 18 Feb 2021

Healthy Plants - Q&A from Mr Booster: Feeding Avocado Tree

Q:We bought one of your avocado grafts and it's doing great, lots of buds for fruit. It's still in a pot and fertilizing with the Sunshine Boosters. Should we continue with this product? We'll plant it in the ground in March. Thought you'd enjoy pictures of our wonderful tree. No freezing temperatures in Riverview, but when it got down into the 30s, the plant came in. One good thing about growing in the pot. I'll be buying some more Sunshine Boosters. This stuff is working great on all our plants.

A: Congratulations with a good job on growing avocado over winter. Avocado trees are not easy, we are happy to hear that your plant is ready for production, this is amazing! We've noticed that Sunshine Boosters perform miracles. Here are some suggestions for you:
1) Continue fertilizing with Sunshine Boosters according to the feeding chart
2) When ready to plant, dig a large hole and fill it with good soil full of organic matter (compost mixed with existing sandy soil will be good). Make sure to plant the tree on 3-4" high elevation, like on a little hill. Avocados need perfect drainage and can't tolerate wet feet. See more info on planting and planting instructions (pdf).
3) Water daily with a hose, do not rely on sprinklers. Avocados like water (considering perfect drainage)
4) Continue applications of Sunshine Boosters at least until the tree is established and starts growing new branches with lots of leaves. After that, you can switch to slow-release fertilizers once a month if it makes it easier, but if you can, continue Sunshine Boosters at least on weekly basis - they really boost plant growth!

Date: 18 Feb 2021

Red Stopper Cherry

Rare plant from Key West

by Mark Hooten, the Garden Doc

Eugenia rhombea, commonly known in Florida as "Red Stopper", is one of four species of Eugenia native to North America. It is a beautiful small tree, bearing small shiny deep green leaves which are pinkish-orange-red when young, giving them the appearance of a flowering tree at a distance when flushing out new growth a number of times a year.
Its native range includes Florida, Bahamas, Cuba, Hispaniola and part of Eastern Central America. However, here in Florida, it is federally listed as an endangered species, only known from the lowermost Everglades and Keys, where even there it is rare.
These elegant little trees grow to perhaps 12 or so feet tall, developing an elegant, umbrella shaped canopy. At a distance, they rather resemble Ficus benjamina, yet with a more orderly and refined appearance. In addition, they develop fluffy white flowers with a delightful fragrance, followed by holly-like long lasting red berries which are relished by wonderful song birds.
Although appearing delicate, this tropical species is surprisingly hardy, and would likely even make striking, a one-of-a-kind houseplant in the North.
These very few plants were grown from seeds collected near Royal Palm Hammock in the Everglades, and and may not be available again for some time...

Date: 11 Feb 2021

Curious Gardenia graft

Q: I was told to send you pictures of my hybrid gardenia tree. About 6 months ago the new growth on the top of one side became crinkled. It doesn't get straightened out either. It seems like it just stays like that until it falls off. Any ideas?

A: Your plant is not sick at all. This is what happened...
Your gardenia is a grafted variety. Gardenia varieties (Gardenia jasminoides hybrids) are grafted on rootstock of Gardenia thunbergia (this species is nematode-resistant and used for rootstock especially in Florida). The side branch that you call "crinkled" is actually the rootstock (Gardenia thunbergia) growing from UNDER the graft. Gardenia thunbergia has naturally "wavy" leaves.
If you follow this branch to its base, you will see where it starts - right below the graft. This happens very often.
You need to remove this branch altogether, from the point where it starts. It sucks energy from the plant and eventually may take over the whole plant.

Photo above: Gardenia thunbergia with curly leaves