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
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:
Q: I need some advice on which fertilizer(s) would be perfect for
my Cannonball tree and its cousin Heaven's Lotus (Gustavia augusta). I also have fruit trees... soursops, mango, etc. and a collection of flowers including pua keni keni, plumeria, bougainvillea, etc. I am wondering if you can recommend a custom
fertilizing regimen for my garden (especially the cannonball and the gustavia since
they are young).
A: It is a perfect time now to fertilize your plants as they
start active growth. We have suggestions on fertilizing programs for your trees.
You will find here our recommendations for:
1. Young trees
2. Flowering trees
3. Fragrant plants
4. In-ground grown fruit trees... CONTINUE READING >>
Q: We have a purple-flowering plumeria which resides on our sunny
deck during the warm months and then Winter vacations on our back porch
where we can close the plastic film windows and where it stays above 50 degrees
(overnite) until it can get moved outside again. We live in zone 8+ in South
Carolina and I would love to plant it outside. Do you think if we
ghost-covered it when alerted that we would have an overnite freeze, that it would
survive being planted in the ground and recover to flower when warm? I don't
believe the soil in our yard has ever frozen below the top 1/2 inch or so, and
never for more than a few hours at a time. What do you think?
A:Plumerias are tropical plants, which means, they need frost-free
environment. Even if the ground is frozen only on "the top ½" or so" - this may be
enough to kill the plant. From our experience, plumerias can withstand a few
hours of windchill frost (not frozen soil), but even if they survive, they
may get some branches damage, and recovery may take so long that the plant may
not even bloom the next year.
So I wouldn't take that risk even with a ghost-cover cold protection.
We have customers who grow tropical plants in the ground in colder areas,
but they have greenhouse protection: this means, the soil is warm and the air
temperature is maintained above 45-50F. For example, this Greenhouse in Virginia.
We recommend to continue growing your rare plumeria in container and
move it inside when temperatures drop below 50F (recommended) and for sure when
they drop below freezing. Plumeria can take a cold night (a few hours of
upper 30's) as long as it is followed by a nice warm sunny afternoon with at
least upper 50s. Otherwise, keep it indoors. The good news is, since plumerias
are deciduous and have no leaves in winter, low light level won't affect the
plant.
Just make sure to minimize watering and keep the plant on a dry side
until it starts growing new leaves in Spring. You may continue fertilizing once
a week with half-doze of Sunshine boosters - Sunshine TotalFeed. This will maintain the plant healthy and prepare
for the blooming season in Spring.
Q: I have ordered plumeria pudica from you in March and it is
thriving really well here in Rancho Cordova, California. The current
temperatures are ranging from 68 to 32 degrees Fahrenheit. My USDA zone is 9b. Does this
plumeria pudica survive outside with temperatures dropping in coming winter
in CA?
A: From our experience, Plumeria pudica is pretty cold hardy and takes some cold spells in
spite of being a tropical species.
Our trees (well-established) took a few hours of freeze with no
significant damage.
Potted plants are less hardy than in-ground plants. However, their
advantage is, they are easy to move indoors or inside warmer place like garage,
etc. If the temperature stays borderline around 32F for a few hours, the plant
should be safe as long as warm day temperatures follow a cold night. For
longer periods of cold, move the plant inside.
Make sure do not overwater and keep Plumeria on a dry side during
winter, since cold and wet is a bad combination and may cause root problems.
Above is the picture of Plumeria pudica tree growing in Cape Coral, FL
where low temperatures in winter sometimes go down to upper 20's for a few
hours.
To improve cold hardiness of Plumerias and other tropical plants, use SUNSHINE-Epi-T for plant thermal protection and immune system boost.
Make sure to fertilize plants on regular basis to keep them strong and
vigorous. The stronger and bigger the plant, the hardier it is!
Q: I got angel hair jasmine, it started flowering, but it does
not have any smell. What can be done?
A:Jasminum pubescens - Angel Hair Jasmine has very fine fragrance. It is
not as strong as some other jasmines like Sambac for example. However flowers do have a sweet scent especially in
the early morning hours, as long as the plant is well-established, grows in
a warm and humid environment. Keep in mind that flowers on young small plants
that do not have a developed root system, may not be as fragrant as on
mature vigorous specimens. Also, this jasmine needs a full sun location and
regular fertilizer for profuse flowering.
We recommend the following fertilizers to boost flowering energy:
- Pink N Good Daily Plant Food - Flower Booster
- Plumeria Top Dress - Smart-Release Booster
Use microelements at least once a month to improve plant vigor and quality
of flowers
Q: On the picture, these are a few of the jasmine plants that I
have from Top Tropicals. I have bought so many plants from you over the years,
not just jasmine. I have several varieties of jasmine. They were all doing
very well. However this year I didn't get a single flower. There are a lot of
buds... But before the buds open they become brown and withered. I bought
fertilizer from you. Fertilized the plants once a month like I always do. I
water the plants once a week. I repotted the plants hoping that would take care
of this problem. Some of the jasmine plants I pruned... the plants came back
vigorous growth with a lot of buds... BUT it is the same problem! Please
help.
A: One of the possible reasons why they have flower issues is -
maybe they don't have enough sunlight. They need to be in full sun all day
long for profuse blooming and proper flower forming. However since the buds are
forming, there may be just enough light. In this case, dropping buds may be a
sign of overwatering.
Important steps - how to make Jasmine Sambac flower:
Q: I have a graft plumeria that is growing sideways. The leaves
seem to be growing upside down. I tied it up with yarn and a bamboo stick last
night. Will it grow strong enough to support itself without stakes or should
I just let nature take its course and take the yarn and stake away?
A: You should definitely help the tree and keep the stick. The
tree will eventually straighten out. It will have a strong trunk and you will
be able to remove the supports.
Q: I purchased Parijat plant last year spring. It had good growth
in Summer, after that I kept the plant inside the house in winter. A couple
of weeks it was ok, after that the plant lost leaves. What is a better idea
for growing Parijat plant indoors in Winter?
A:Nyctanthes arbor-tristis, Parijat - is a semi-deciduous plant, which
means, it may lose its leaves during unfavorable conditions such as drought,
cold, low light and/or humidity. In your case, the plant dropped leaves because
of the stress of moving indoors that includes reducing light and humidity
levels. When a tropical plant loses leaves during winter, this means it goes
into a dormant stage. If this happens, you need to reduce watering and keep the
plant on a dry side, water in only when the top level of the soil feels dry
to touch. Do not fertilize.
Try to place the plant in a well-lit spot such as a windowsill. If the
windowsill and the window glass feel too cold for touch during wintertime,
you may place a sheet of a Styrofoam underneath the pot, and a sheet of a
bubble-wrap between the plant and the window glass, to create an extra barrier
from cold. The plant may re-leaf during wintertime; if not, it may wait until
spring, be patient.
Bring it back into outdoor light when minimum temperatures rise above
65F and resume fertilizing.
Q: Pretty much adore last newsletter. Haven't been buying because
our weather here in deep south Texas is so bad it is stunting and killing
even the Tamaulipan Scrub! Do you have a cure for that? :) I have every
expectation the new grafted Plumeria I purchased from you last year will bloom soon.
One of my favorite plants. Thanks again and keep up the good works.
A: Yes, there is a "cure" - using biostimulants that improve drought- and heat- resistance (SUNSHINE
boosters), plus the right plant selection. In fact, there is a large number of
tropical rare plants that can be successfully grown in hot climates like yours.
One of our partners lives in hot and dry Arizona area and has an amazing
tropical garden that includes many fruit trees (Mango, Persimmons, Pomegranates, Loquats, etc). Here you can see a few pics from his garden.
Your choice is absolutely right about plumerias. Other easy plants would be Desert roses - Adeniums, and Fancy Euphorbia millii - all these come in so many varieties of colors
and bloom throughout most of the year. Our special recommendations for you
would be also:
