Cold hardy tropical fruit trees for Luisiana

Q: I've just moved to Louisiana and have been wondering whether it would make sense to plant some tropical fruit trees in our garden. Average lows in New Orleans are 41 deg F in January and February, although we did hit 25 once with the Arctic vortex. I'm interested in litchi, longan, rambutans, and persimmons. Do you have varieties that can tolerate Louisiana's temperature range? I'd love mangosteen but I don't suppose they will survive. Do you have any suggestions on tropical fruit trees that I could try?

A: Average temperatures are for statistics only; it is actual temperatures that may hurt your cold sensitive plant. This is what you should keep in mind when starting your tropical fruit collection:
1) Ultra-tropical plants like Rambutan can not survive winters below 45-50F. However, they can be successfully grown in containers in a greenhouse or moved indoors into a sun room during cold periods.
2) Tropical plants like Litchi and Longan may take some light frost once established. Still, for areas with freeze our advice is - keep them in pots and move inside in case of cold.
3) There is a number of subtropical fruit trees that are hardy enough to take some freeze. Persimmon, Feijoa, Fig, Cattley Guava, Jujube, Kiwi, some Eugenias and others. Please refer to our Tropical Fruit Sensitivity Chart.
4) Remember that plant's ability to survive winter depends on several factors, not only temperature itself. Important factors are: wind protection (chill wind kills rather than low temperature itself), exposure, how close the tree is planted to the house, plant maturity and its overall strength and health. If a plant had received good nutrients during summer, has well established root system, planted in enclosed area protected from winds and has plenty of bright sunlight - it has better chances to survive than a weak plant in warmer conditions.
5) Use SUNSHINE plant boosters for improving cold tolerance of your tropical plant. It only takes a few drops, and only costs $5!

Flowering plant for a front yard

Q: I need your expertise. I had a plant in the front of my house that when I moved in (two years ago) wasn't doing well. It was infested with grasshoppers and snails. I treated it with a pesticide and fertilizer and it flourished. Had beautiful flowerings and was almost the size of the mulch area. Then the property management company hired some terrible grass cutters that I believed destroyed it. I would come home and find the red mulch and leaves from the plant all over the front lawn. And since then it has gone down hill. I am attaching a picture. As of now the larger of the remaining two trunks (out of six that were there) is falling over and it doesn't seem to be doing well. So I was wondering if you can recommend a nice plant that I can replace this one with. Nothing extravagant but nice enough to fill in that area. Also since I only lease here don't want to get to pricey either. Thanks for any advice and plants you have.

A: The plant you have is called Spider Lily. It is one of the easiest landscape plants that doesn't require much care and is great for low maintenance yards. In your case, besides possible damage from the grass cutter, looks like the plant is very old judging by the thick woody stem. It is not a bad idea to replace it with something more pretty rather than trying to baby it. Other suggestions for this location would be something easy and low maintenance, especially if you don't have reliable sprinkler system in that area of your yard and don't want to spend time hand-watering with a house:
Sweet mimosa - grows into very large bush, Pony tail, Dwarf poinciana, Powderpuff, Clusia, Devils backbone (smaller bush 3 ft tall), Cordyline, Ti leaf - these are very colorful.
There are more low maintenance plants you can chose from.
And always remember that traditional "landscapers" that only mow grass, may not be experts on plants. You may always call TopTropicals Garden Doctor and get professional help with keeping your plants healthy. We are always here to help your garden!

Groundhog Day Feb 2

On Groundhog Day Feb 2: Groundhog Punxsutawney Phil saw his shadow on Thursday morning, predicting six more weeks of winter during Groundhog Day festivities at Gobbler's Knob, a small hill just outside Phil's hometown.
According to folklore, if it is cloudy when a groundhog emerges from its burrow on this day, then the spring season will come soon; if it is sunny, the groundhog will supposedly see its shadow and retreat back into its den, and winter weather will persist for six more weeks.
Phil promised long winter, however, we should not cry in despair but starting to get ready for Spring!

Spring Check List:
- Make sure min temperatures are above 45F before you start bringing potted plants outside.
- When active new growth appears from buds, after-winter pruning can be done.
- You may start weekly fertilizing as soon as night temperatures raise above 55F.
- Start planting in the ground as soon as there are no more chances of frost, until then keep newly arrived plants in pots so they get better established.
- Low chill cold hardy fruit trees including Peaches, Nectarines, Plums, Apples, Mulberry, Loquats go in the ground first, so you can enjoy their blooms and early fruit set. Plant Pomegranates, blueberries and cranberries, raspberries and blackberries, grapes.
- Water as needed, still keeping on dry side until afternoons get hot and plants start using more water.
- Start seeds indoors. The sooner the better, to give seedlings more time to establish before planting out in the ground.

Overwintering Magnolia (Michelia)

Michelia alba Question: I have a question about Michelia alba. My Michelia alba leaves turning yellow and losing leaves. When I brought it inside for the winter, after the leaves falling off new one grow back not all of them grow back and now the new the branches start to die. I water once a week.

A: Whenever moving a plant in or out of the home it is always best to do it gradually. Moving a plant all in one day will cause stress to the plant due to environmental changes such as, new humidity levels, new light levels and new watering requirements. Michelias usually loose their leaves once in the spring and once before winter but grow them back right away. Now that your plant is inside with less humidity, light and leaves, you only need to water once the soil as almost dried out. You will need to stick your finger in the soil to see if it is still wet as the top layer dries before the under layer. If the branches are starting to die at the tips this usually means too much water. Move the plant to a bright light window, decrease water and you may want to also use a humidifier.

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!