Garden Blog - Top Tropicals

Date: 15 Aug 2018

Care for a Baobab Bonsai

TopTropicals

Q: How to grow Baobab bonsai properly? How long does it take to shape a nice little bonsai tree?

A: Baobab, or Adansonia digitata, is a unique addition to a bonsai collection. Native to Africa, it has an unusual structure and appearance. Some legends say that the tree was cast down from the heavens and landed upside down, where it began to grow. This story is no doubt a result of its appearance in the winter, when the upper branches of the tree look more like roots than treetops. The Baobab has some specific needs, but if you pay careful attention to its requirements, this tree is not difficult to grow and makes an excellent bonsai specimen.
1. Keep Baobab warm, it is sensitive to freeze.
2. Place Baobab in a bright, sunny window. Baobabs need at least six hours of full sunlight per day, so a window with a western or southern exposure is best. If your house doesn't get enough light, supplement natural light with artificial grow lights. See article Indoor lighting for tropical plants.
3. Water Baobab regularly during the growing season whenever the soil is dry. Never water the tree when it is dormant (dropped leaves).
4. Feed Baobab a good-quality fertilizer about once a month. Apply micro-element solution SUPERFOOD once a month, as well as SUNSHINE-BC plant booster for Bonsai and Caudex plants.
5. Prune the branches of your Baobab bonsai as often as they need it to give the tree the shape you desire, pruning or pinching off branches that are growing at odd angles or are too long. Trim early in the spring before new growth appears.
6. Repot the baobab bonsai every year in Spring. Remove it from pot and trim the roots back by one-third of their length, completely removing any that are damaged or dead. Place it in a container that is twice the size of the root ball and fill the pot with a well-drained soil like Adenium Mix.

It is believed that it takes forever to form a nice shaped tree, up to a few years. However if you provide warmth and bright light, branches grow very quickly, and an experienced bonsai hobbyist can make a unique specimen within 2-3 years. And then, the tree will stay with you for 5000 years - it can be passed from generation to generation!

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Date: 26 Sep 2021

Edible Landscape: fruit bearing hedge

Photo above: Biquinho Pepper (2 months old plant)

Q: My mom had to remove a hedge for some renovations and after being heartbroken about losing my little bird haven, I've decided to plan on a fruit bearing hedge that offers some privacy and places for the little fledgling to wait for food. Any suggestions? I was thinking blueberries or citrus but open to any ideas.

A: Below are a few suggestions for a fruit bearing hedge planted with fast-growing, tropical species. They will contribute to a nice edible landscape for both your family and the birds - they will be very happy!

Larger size hedge (small trees), grows full-size within 1 season:
- Loquats
- Dwarf Mulberries (very cold hardy too) such as Dwarf Everbearing

Medium size hedge (shrubs or vines), 2-3 seasons to grow full size:
- Black Surinam Cherry Lolita
- Blackberries and raspberries

Low hedge (4-5 ft tall, 1 season, fast growing):
- Biquinho Pepper
- Wiri Wiri Pepper

Citrus is probably not a good idea, not bird's favorite, and blueberries require a special acidic soil here in Florida, so they will need extra maintenance, special soil, and heavy mulching.

Blackberry hedge

Surinam Cherry Lolita, 2 year old plant

Loquat (5 years old bushy specimen)

Date: 22 Mar 2021

The most rewarding hardy fruit trees

Q: Recently I started working remotely and I kinda like it, no need to commute, it saves me so much time so I can have life now! My friend got me involved into growing some small houseplants but I really want to take advantage of our Florida climate and sun. I want to plant some cool fruit trees since I have a decent size yard. But I live in Florida Panhandle and we do have some occasional freeze in winter, although not for too long. But it gets very hot in summer! Are there any tropical fruit trees that will be happy here? Or should I keep everything in pots? I am excited to have my own tropical plant collection!

A: There is a perfect plant for everyone, and a perfect tree for every climate. Many tropical and especially subtropical plants can be much hardier than they are believed to be, both flowering and fruiting trees among them. You may keep the most sensitive species in pots and bring them inside for winter, while there are so many trees that will be happy in your area. Start with these that are perfect for climates with hot summers and cool winters:

1. Peaches and Plums

Low-chill, Heat-tolerant Peaches, Nectarines, Plums are especially selected for Florida hot summers. They produce well and do not require many "chill" hours like temperate fruit trees. They only need 150 chill hours and grow well in even in Arizona, so you know they are taking the heat.

2. Figs

2) Fig trees - they are easy to grow, heat- and drought- resistant trees. They are prized for their delicious fruit, which can be one to three inches in length, violet, brown or black. There are even varieties with yellow fruit. Most fruits are borne from early summer to late fall on new growth, and the fruits generally mature very quickly. These trees are sensitive to frost only when actively growing, but can withstand 10F when dormant. Read more about Fig trees.

Date: 28 Dec 2020

Healthy Plants: Q&A from Mr Booster

How to grow a happy Red Jade Vine?

Q: My Red Jade Vine has the leaf tips turning brown. I water this plant four times a week and I am using a half a teaspoon of miracle grow bloom booster 15-30-15 per 2 gallons, every two weeks. In the beginning I had to water this plant off city water in South Fort Myers. Over the last two months I picked up a dechlorinator buggy plus threw that on my hose and I've been watering it with that but it didn't seem to make a difference. I put this plant in the ground last September. It has three shoots that run into the top of the tree, so it is growing but leaves seem to drop off down low at the base of the vine and the brown tipping running into the top of the plant. But not the newest shoot its leaves are solid green all the way at the top. Thanks for any advice.

A: Mucuna benettii - Red Jade vine - is not the easiest plant to grow, and we are glad your vine is growing well. For those who love this plant but not ready to face all challenges, we recommend its cousin - Camptosema grandiflora - Dwarf Red Jade Vine, which is much hardier and easier plant.
We looked at the photos and these are our thoughts.

1) The top of the plant with green fresh leaves definitely indicates that the plant is generally healthy and vigorous.
2) Dry tips of the old leaves may indicate excess salts in soil, in combination with the summer heat that it went through. Based on your feeding program description, that fertilizer may create a problem. Water soluble traditional fertilizers are EDTA-chelated which often causes nutrients lock up in soil and leaf drop. Try to stay away from that fertilizer for a month and let the rains and/or irrigation water flush the soil for a couple of weeks.
3) Red Jade vine is a very sensitive species. Normally, during hot season it is safe to use traditional fertilizers, especially slow-release granulated. However, with this plant we recommend you to switch to more delicate formula and use only liquid fertilizer.
SUNSHINE Megaflor - Bloom Nutrition Booster will be the best. It is safe to use it as frequent as with every watering! It is amino-acid based, and will be totally consumed by the plant without nutrient lockup.
4) Another cause of dry leaf tips may be micro-element deficiency.
Megaflor booster already has all necessary micro-nutrients in it, plus you may apply some extra: SUNSHINE Superfood.
5) You may continue using regular water for watering (including city water) as long as you use amino-acid based plant food and supplements: they improve soil acidity (what tropical plants like is acidic soil, and Florida soils are alkaline). Additionally, to improve soil acidity which can be critical for this Mucuna species, you may add 1"layer of pure peat moss on top of the soil around the plant. Please keep us in loop how the plant is doing. It is pretty rare species in cultivation and we will be happy to help you to keep it thriving.

Date: 25 Jan 2021

Coastal Plants. List of plants that do well in coastal areas

In the photo: Delonix regia - Royal poinciana, Flamboyant

Q: How can I get a list of plants that do well in coastal areas (i.e. next to sea)?

A: Many tropical plants live by the sea in natural habitat and don't mind ocean breeze. We have a large selection to pick from. The following groups of spectacular flowering trees will enjoy coastal environment:
Cordia trees
Plumerias
Orchid trees (Bauhinias)
Caesalpinias
Callistemons (Bottle brush trees)
Cassias
Many palm trees

See full list of salt-tolerant plants available at this time.

In the photo: Cordia sebestena - Scarlet Geiger tree