Zephyranthes pulchella - sunny face of incredible Magic Lily

by Mark Hooten, the Garden Doc

...These wonderful little lilies came as a gift from a botanist studying the native plant life of Southern Texas nearly 30 years ago. Originally grown from seeds collected for a doctoral thesis, near the town of Refugio (along the Southern Texas Gulf Coast, just north of Corpus Christi), this brilliant, fetching tiny lily really deserves to be more well known. The thin, grass-like leaves grow from small onion-like bulbs that produce an abundance of shockingly bright cadmium-yellow flowers which greatly resemble those of certain yellow Crocus, except on longer stems.
There is one caveat which goes along with this incredible species... it can be wonderful, depending upon a growers situation... which is that this species is "apomictic". This means that they produce seeds which do not require cross pollination, and technically are clones of each mother plant!..

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Musa ensete Maurelli - Red Abyssinian Banana

by Onika Amell, tropical plant expert

Q: I am looking for a colorful, tropical plant with in particular, coarser texture, to add to planting beds next to my decks and around my swimming pool. Any suggestions? I am located in St. Petersburg, FL.

A: Consider incorporating some fast growing Red Abyssinian Banana, also known as wild banana or Ethiopian banana. This is a fantastic ornamental from East Africa and an excellent choice to create a tropical feel and to add coarse-textured foliage. This plant is not a true banana and therefore does not produce any edible fruit. American gardeners were rather slow to discover this enormous perennial, but finally woke up to them over the last decade to a point where they now are considered to be one the most beautiful ornamental banana plants for the landscape and for good reason...

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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.