Garden Blog - Top Tropicals
Date:
Don't miss this one:
PodCast Premiere!
Episode 1
How to Protect Tropical plants in Winter: Q & A
Featuring Horticulturist Mark Hooten
...We are introducing our new Series: Top Tropicals Podcast. Growing tropicals and pushing the limits. Watch the first episode:
...Who doesn't like tropical beauty? Everyone wants tropical plants. But not everyone lives in a warm climate. Is it possible to grow tropicals outside of Tropics?
Top Tropicals horticulturist Mark Hooten, who is well known to many
gardeners as the Garden Doc with his
Saturday Plant Clinic, is answering gardeners' questions about how to prepare and protect tropical plants during winter...
Premiere scheduled:
Thursday, January 27, 8:00 AM
More about cold hardiness and cold protection:
Cold hardy tropical fruit trees
Growing Stephanotis and cold protection
Cold protection of tropical container plants
Plumeria cold protection
Ghost Cold Protection
Seven rules of cold protection for tropicals
Improving cold hardiness before winter: fertilizer and micro-elements
3D garden ideas and winter cold protection
Cold protection - winter action for your plant collection
About Cold Protection
Date:
Cold protection of tropical container plants
Q: I am long time customer of yours, I live in San Diego California and while the summer and Fall temperatures are warm to mild, the winter temperatures dip to a point where some tropicals die off. We are experimenting with different variations of way to heat and insulate the pots we have the tropicals planted in as a way to keep them alive during the colder winter months. I was wondering if you knew of the ideal soil temperature for these tropical in order to look their best year round. All of the heaters we have installed have thermostats and temperature adjustments so we can now keep the soil anywhere between a range of between 65-75 degrees. Any advise you can provide would be greatly appreciated.
A: This is a very interesting concept you are working with.
Indeed, keeping pots/roots warm, may help a lot! We've been experimenting with
cold protection for a long time - for the above-ground plant parts. For sure
keeping roots protected (even with a thick layer of mulch) will benefit tropical
plants during winter. In case with container plants, this may help
dramatically.
The guideline is, tropical plants slow down or stop their metabolism at
65F. As long as you can keep soil above that temperature - this should work
great. Of course, the higher the better.
Optimum temperature for growing tropical plants in general - 70-85F.
Above 90F, metabolism stops too, unless it's a heat tolerant, desert
plant.
More information on winter cold protection of tropical plants and zone pushing:
Greenhouse in Virginia
Plumeria cold protection
Ghost Cold Protection
Seven rules of cold protection for tropicals
About Cold Protection
Cold protection - winter action for your plant collection
Tropical Treasures articles on zone pushing.
Date:
Ghost Cold Protection
Q: Has anyone ever tried using heat packs under frost blankets to protect tropical plants from frost?
A: The reality is, the heat packs used for shipping do not have enough heat capacity to create efficient warming effect. From our own experience, the best way is to use small 25W incandescent bulbs which produce lots of heat (considering observing all safety precautions and fire safety). Some gardeners use Christmas lights. See picture of our plants in the ground during a cold night. We called them Ghost Cold Protection! ;)
See more columns on cold protection:
Seven rules of cold protection for tropicals
About Cold Protection
Cold protection - winter action for your plant collection
Tropical Treasures articles
Date:
Seven rules of cold protection for tropicals
Q: I was always wondering how you guys manage to grow true tropical trees in Florida? I live in Puerto Rico and we have Breadfruit trees growing here in a wild... but my sister lives not far away from you, in Orlando, which is much colder, and I wonder if I can get her a Breadfruit tree for Christmas?
A: Your
sister can grow a Breadfruit tree in Orlando either in a pot (and bring it indoors during
cold periods) or in the ground inside a structure (an elclosed conservatory
with heating system). See our customer's Greenhouse in Virginia. Cold protection of tropical plants is a lengthy
subject and we have many interesting publications about it in our managine
Tropical
Treasures and on the website. In a nutshell, when growing tropicals outside of
tropical climate, you need to follow these 7 rules:
1. Cut watering to a minimum. Cold+wet kills tropical roots.
2. Water thirsty plants before a cold night. Jucy leaves have fewer
chances to be cold-zapped.
3. Wind protection is more important than a temperature drop. Plant
tropicals close to a house or surrounded by other trees.
4. Duration of a cold period is more critical than the cold itself. If
expecting long cold hours, bring up all available protection resources.
Christmas lights or propane heaters - as long as there is a heat source,
everything helps!
5. Remove plastic covers during the daytime so plants don't get
"cooked" in the sun. Fabric covers are better than plastic.
6. Grow ultra-tropicals in containers and bring them inside the garage
or even indoors during the cold.
7. Use SUNSHINE plant boosters and feed your plants well during Summer to improve cold hardiness.
Related topics:
About Cold Protection
Cold protection - winter action for your plant collection
Improving cold hardiness before winter: fertilizer and micro-elements
Cold hardy tropical fruit trees
Date:
❄️ How to Prepare Your Tropical Garden for Winter
Smokey and Sunshine Wrap Up the Garden with Frost Cloth Before the Chill.
Smokey: "Thermometer says 45. Time to wrap the bananas!"
Sunshine: "You wrap the bananas. I’ll guard the mulch… from this
sunny spot."
Smokey: "Teamwork, Sunshine. Teamwork."
🌡️ Cold nights are coming - but your tropicals do not need to shiver!
Even in sunny Florida and other warm zones, one cold snap can undo months of growth. Preparation is everything. Tropical plants can handle a lot, but they dislike surprises. Let’s make sure your garden stays safe, strong, and happy all winter long.
Tips from Tatiana Anderson, Top Tropicals Plant Expert
👉 Group and Check Your Plants
You already know which plants are in pots and which are in the ground. What matters now is prioritizing by cold sensitivity. Identify the tender tropicals – papaya, banana, plumeria, adenium, heliconia – and decide which ones get covered first when temperatures drop. Keep frost cloths or old sheets near those areas, ready to grab fast. If your garden is large, label protection zones or mark plants that always need extra care. The goal is to have a plan, not a panic, when the cold alert hits.
Once you know your priorities, you can plan the rest of your protection strategy.
👉 Feed and Mulch
Stop using high-nitrogen fertilizers by late fall. They push soft new growth that freezes easily. Add compost around the base of your plants and top with 3 to 4 inches of mulch. Mulch acts like a blanket: it keeps warmth in, protects the roots, and keeps soil moisture steady. Just make sure the soil drains well; cold and soggy soil leads to root rot. In raised beds, check that water flows away easily.
After you feed and mulch, it is time to look at how your local zone changes the game.
👉 Zone-by-Zone Tips
Moving Tropical Plants Indoors for Winter Protection
- Zone 10: You are lucky! This is mostly a maintenance season. Watch for root rot after heavy rain, trim lightly if needed, and protect tender young trees during surprise chills. Keep some frost cloth ready just in case.
- Zone 9: This is the main action zone. Nights can dip into the 30s. Deep-water your trees once before cold nights to insulate the roots. Apply heavy mulch, and have frost protection ready to go. If you grow tropical fruit like mango or guava, consider wrapping young trunks in burlap or foam pipe insulation.
- Zone 8: This is where tropical gardening becomes creative. Stick to cold-hardy tropicals such as loquat, guava, or cold-hardy avocado varieties. Use portable greenhouses, wrap trunks, and move smaller plants indoors or to a heated porch when frost threatens.
Now that the garden beds are set, let’s look at your pots and containers – your most mobile plants.
👉 Container and Patio Plants
Potted plants are the easiest to protect but also the quickest to freeze. Start reducing watering now so roots do not stay too wet in cooler weather. Before moving them, check for insects hiding under leaves or in the soil. Group your pots close to a wall for reflected heat and wind protection. If you plan to bring them indoors, do it gradually. Move them closer to the house for a few days before bringing them all the way inside to help them adjust to lower light and humidity.
When the chill starts, many gardeners rush to move everything inside at once – but a smooth transition works much better.
👉 Indoor Plants
When bringing plants inside, give them a good rinse to remove dust and bugs, and flush the soil to wash out salts from summer fertilizing. Keep them separate from your houseplants for a week to make sure no pests come along. Expect some leaf drop – it is normal as they adjust to lower light. Give them bright light near a window, and cut watering by about half until spring. Avoid misting too much; good airflow matters more than humidity during winter.
Many tropicals, like hibiscus, brugmansia, and crotons, may look tired for a while, but they will bounce back quickly once days get longer.
👉 Timing Is Everything
The key is to prepare before the first cold warning. Check your weather app regularly once nights start dropping into the 50s. Keep covers, mulch, and supplies ready so you are not running outside at midnight with a flashlight and a frozen hose. Have your frost cloths labeled by plant group and stored in an easy spot. A little organization now saves a lot of stress later.
Many tropicals, like hibiscus, brugmansia, and crotons, may look tired for a while, but they will bounce back quickly once days get longer.
Remember: the goal is to help your plants rest safely. Many gardeners prune or fertilize too late in the season – we will talk about why that can be risky next week." — says Tatiana Anderson, Top Tropicals Plant Expert
Coming next mail-list: The best gadgets for cold protection (lights, heaters, frost covers) and what NOT to do in winter.
📚 Learn more from Top Tropicals Blog:
Cold protection - winter action for your plant collection
What plants are good to order in Winter?
How to take care of house plants in Winter
How to protect tropical plants in Winter
How to take care of a mango tree in winter
How to protect Avocado from cold
Overwintering Adeniums outside of tropics
Protecting Tropical Plants with Frost Covers at Top Tropicals Nursery