About Cold Protection...

Q: I have a question, if I'm in Okeechobee Florida zone 9b are there any plants that you sell that would have to be protected at all? I have a lot that I've purchased from you and don't want to lose any of them winter.

A: Sometimes it is hard to guarantee if certain plants are hardy enough in certain area. From our experience, tropical plant performance in non-tropical areas depend on many factors; a lot of times plants appear to be hardier than they are believed to be. Other times, an obviously hardy plant doesn't survive winter. So there always will be a chance of risk involved, while nice surprises are not an exception. We have been testing many tropical species throughout many years of our nursery experience. Wind protection in many cases is more important than temperature. Enclosed sections of your garden provide better chances to survive cold snaps. Generally speaking, here is the list of some plants (not complete list, just examples) that in our experience have been surviving light freezes without significant damage.

Q: I live in San Jose,CA. Got Mango Alphonso 2 yrs back and protected it for a year in a pot during winter. Last spring I planted it and during winter I put a freeze cloth to protect it but it died. How can I make sure it wont die if I buy this time plz?

A: Mango trees are tolerant only to light frost, once established. If it gets below freezing in your area for more than a few hours, and especially if you have numerous nights with frost throughout winter, we recommend to keep mango tree in a pot. This way it can be moved to protected area during cold night. The more established the tree, the more chances to survive colder temperatures.
We also use plant booster Sunshine to increase plants cold tolerance
Cold protection is a lengthy subject. You may also use propane heaters during cold nights.
Here is some more information on cold protection.
Also, we recommend to check out our magazine Tropical Treasures (about pushing the limits of tropical gardening) for a detailed article on cold protection.
These are specific articles on Zone-Pushing in different issue #s regarding dealing with cold. See downloadable issues:
(#1) Growing Tropicals in Nontropical Climate, Three Freezing Nights in Southwest Florida
(#2) Temperature drops - an alert or a rehearsal?
(#5) Dealing with cold snaps, Cold hardy beauties
(#7) When winter is around the corner, Growing exotic Cordyline in colder climate
(#8) When the weather outside is frightful
(#9) Winter champions
(#11) Ready-for-winter checklist for in-ground plants
(#13) Winter checklist
(#18) Dealing with cold damaged plants
You may also order hard copies.

If temperatures drop below freezing in your area, remember to add Heat Pack to your order!

Plant Horoscope. Taurus Zodiac lucky plants: Fragrant Cananga odorata and Chonemorpha

Taurus - 4/20-5/20. Taurus is an EARTH sign ruled by the planet Venus. Venus is the planet that represents desire and beauty, regarded as the female embodiment of sexual love and human appetite, so Taurus plants often have gorgeous flowers and enticing fragrances and, occasionally, red fruit. It rules the internal sexual organs, the nose and sense of smell.

Because Taurus rules the throat and ears, the best plants for the Bull are often soothing to the throat, or may calm the digestive system after overindulging in the finest foods. Taurus is related to those things we want and value. It harmonizes various body systems, and influences the complexion and facial appearance. Also under Venus's dominion are the abdomen, kidney, thymus, and breasts. Venus-governed herbs are soothing and help to regulate the body's metabolism through the endocrine system. Taurus herbs are traditionally used to attract money and resources. Earthy Taurus sign is all about building a stable and comfortable foundation and can help you generate greater abundance and prosperity in your life.

Taurus Zodiac lucky plants - Aglaia, Cananga odorata (Ylang-Ylang), Artabotrys (Climbing Ylang-Ylang), Cerbera, Night blooming jasmine, Chonemorpha, Erblichia, Euodia, Hiptage, Iboza (Musk Bush), Anise, Lavender, Lonchocarpus Lilac Tree, Nutmeg, Parijat, Camphor Basil, Osmanthus, Funeral tree, Quisqualis, Satureja (Kama Sutra Mint Tree), Viburnum, Carissa, Murraya, Curry Leaf, Bunchosia (Peanut butter fruit), Eucalyptus, Lily, Vitex agnus castus (Blue Chaste Tree), Alstonia scholaris (Sapthaparni), Papaya, Maple, Jasmine, Guaiacum, Camellia, Ephedra, Fuchsia, Geranium, Spider lily, Gardenia, Magnolia, Plumeria, Paeonia,  Verbena, Clerodendrums, Apple, Pear, Apricot, Peach, Plantain, Olive, Grape, Pomegranate, Mango, Neem Tree, Cherry, Cypresses, all Berries, Raspberry, Asparagus, Mint, Clove, Roses, Stagshorn fern, Catnip.

For other signs information, see full Plant Horoscope.

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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.

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.