Garden Blog - Top Tropicals

Date: 9 Aug 2021

Care of Desert Roses

Q: I am looking forward to my three desert roses I just ordered from you and I am wondering how to take care of them, especially during winter time. Should I put the pots in full sun or shade? What kind of soil do they like? How often should I water them? When it gets cooler, should I bring them inside? We do have occasional frost here during winter.

A: Here are a few tips for your desert roses:

1. When received Adenium from mail-order, unpack carefully; branches are fragile. Plant in well-drained potting mix. Cactus mix will do, but we recommend special Adenium mix. If using regular acidic peat-based potting mix, you may add sea-shells on top of soil to neutralize acidity: adeniums prefer alkaline soils. Using clay pots is beneficial. Water once and do not water again until soil gets dry. Place in bright shade until new leaves sprout, then the plant can be moved to full sun.

2. Adenium is a succulent, but not a cactus. It needs watering, however let soil dry before waterings. Reduce watering during cool season and discontinue when plant gets dormant (drops all leaves in winter).

3. Bright light is the best for profuse flowering. However, adeniums look much healthier in slightly filtered light rather than in all-day full sun.

4. Fertilize and spray leaves with liquid fertilizer SUNSHINE Megaflor - Nutrition Bloom Booster. Phosphorous is responsible both for flowering and caudex development. Avoid caudex, spray over foliage only. Dry fertilizer can be used only during hot months.

5. Watch for spider mites during hot and dry season.

6. Give plants a break during winter dormant season. Keep in bright shade and reduce watering to 1-2 per month or stop watering if temperature is below 65F.

More info on growing Desert Roses:
What you need for successful growing Adeniums
Overwintering Adeniums outside of tropics
Growing Exotic Adeniums - Growing Exotic Adeniums

Date: 4 Jun 2021

Tahitian Gardenia

Q: I am interested in your Tahitian Gardenia and I would love to try and grow this plant in a large container/fabric pot. The soil here where I live is terrible as it's hard rock, clay, and sand! So I'm not sure if amending the soil would help to plant in the ground? Can you tell me if this will do okay in a container or best in ground? I live here in Las Vegas, NV (zone 9a). Any information would be great to help me make a this decision, I love the selection of cool tropical plants you offer! Also my daughter does Tahitian/Polynesian dance and this would be a cool "topping on the cake" if she could have a live Tiare flower in her performances.

A: Tahitian Gardenia will be doing best if grown in container in your area. In its natural habitat, it grows full sun but also it enjoys mild weather conditions and high air humidity. All gardenias prefer acidic soils. In your area, if planted in the ground, it may be exposed to some harsh conditions: too high temperatures, too hot sun, dry air, and as you mentioned - heavy clay and sandy soil. You can enjoy this plant grown in container, which can be moved as needed away from too much sun during summer months. Use well-drained potting mix. Use plastic pot, do not use fabric or clay pots - soil will dry out too quickly.
Also remember to fertilize this plant on regular basis with a liquid fertilizer SUNSHINE Pikake - Fragrant Flower Booster.
Grow gardenia in full sun or semi-shade during the hottest months. You may spray it with pure water if the air too dry and hot. Enjoy your Tropical Beauty and good luck!

Date: 25 Jan 2021

Healthy Plants: Q&A from Mr Booster

How to get Canistel tree to produce
without dropping flowers and fruit

Q: My Canistel tree is 3 1/2 years old and is growing very well, see the picture below. It gets hundreds of pea sized "berries" but then they fall off. No canistel fruit. What's wrong?

A: You have such a nice looking tree, it is a shame you can't get any fruit to ripen.
In our experience, Pouteria trees dropping fruit prematurely is a very common problem. There may be one of the following reasons, or a combination of them:
- Cold winters may affect production, and while Canistel is generally pretty hardy tropical plant that can easily withstand short periods of chill, the fruit may never form properly if it had a cold winter.
- Lack of water. Canistel tree is pretty drought tolerant, but for the proper production cycle it needs regular irrigation. Especially during hot summer.
- The tree may be not strong enough; young trees drop fruit very often when they don't have enough "fruiting energy" built up in their system.
Your tree looks well established and vigorous, however, flower/fruit drop is often a sign of insufficient nutrients of particular kind, usually Boron (B) and/or Molybdenum (Mo): either when a tree is too young and not strong enough, or because of poor soils and lack of necessary elements.

Here is what can be done, considering you live in a warm, frost-free climate.

1. Provide regular fertilizing program. We recommend liquid fertilizers Sunshine Boosters that are safe to use with every watering and year around. It is beneficial to switch plants from traditional "slow-release" fertilizer to the liquid one because it makes a huge difference in plant growth and flower/fruit quality and quantity. See also:
- Why liquid fertilizers are better than dry
- Article about benefits of liquid fertilizers.

Use this plant food for your Canistel tree:
SUNSHINE C-Cibus - Crop Nutrition Booster

2. Apply micro-element remedies that are very effective for improving fruit production, especially when flower or fruit drop occurs:

SUNSHINE Honey - promotes more efficient blossoming and pollination, makes flowers bigger and reduces bud drop.
SUNSHINE SuperFood - improves plant vigor and quality and size of flowers These are all natural, eco-friendly supplements that work great for fruit trees and other edibles.

Date: 4 Sep 2020

Healthy Plant Food: Q&A from Mr Booster

Encouraging blooms on the Hawaiian Sunset Bell Vine

Q: Please can you advise how to encourage the Stictocardia beraviensis the Hawaiian Sunset Bell vine blooms? Mine is all beautiful leaves and full sun in Miami.

A: Providing full sun, Stictocardia blooms profusely. In your area, it should be happy and thriving. However, keep in mind that these flowers can be seasonal (meaning, not ever-blooming). The good news it, Hawaiian Sunset Bell usually blooms several times a year on and off. In our garden, we have a large plant growing in the ground and covering a whole fence; we see flowers 3 times a year:
- Early Spring
- Summer (sporadically)
- Late Fall to early Winter

Make sure to provide proper fertilizer to encourage blooms. It is especially important if you grow this plant in container (where nutrients are very limited). We suggest the following fertilizer for your Stictocardia:

SUNSHINE Megaflor - Bloom Nutrition Booster

Date: 28 Oct 2016

Devil Flowers - Bat Lilies - for Halloween!

Tacca. Growing Tacca is a great way to have an unusual flower or novelty plant, both indoors and out. Tacca is an exotic plant with flowers that mimic a bat in flight, deep purple (or white), with ruffled wings and long, hanging filaments. Curious, bat-like inflorescence both in shape and color, with wide spreading, wing-like bracts of rich maroon-black (some varieties have white flowers), accompanied by long trailing filaments or "whiskers"; the small black flowers are succeeded by heavy berries; corrugated olive-green leaves with oblique base surround the bloom... Those in warm areas can learn how to grow the beautiful and unique bat flower outdoors. In more seasonal areas, bat flower info says the plant and frilly flower grows vigorously indoors when it is happy with the conditions.

How to Grow Bat Flower. Growing bat flowers requires a little extra care, but blossoms of this unusual specialty plant makes it worthwhile. Large plants usually have a greater rate of success than smaller ones. Keep your bat flower away from cold temps and away from direct sun. When growing this plant outside, plant it in the shade. Care of bat flower indoors will include a shady location as well, and yearly repotting for the rapidly growing plant. This plant does not like to be root bounded. Pot up until reaching a 10- or 12-inch pot; after that, trim the roots and return to the same size pot, if desired. Well-drained soil is a must when growing Tacca bat flowers and should remain slightly moist. Soil should be light and retain moisture but never allowed to get soggy. Our special potting mix will work best for this plant.
The plant should be allowed to dry out during dormancy. Keep this in mind during its time of rest, in fall and winter. In warmer areas, bat flowers reportedly do not experience a dormant period. Fertilize monthly or every six weeks with a slow-release plant food.
For improving cold hardiness in winter, and heat tolerance in summer, apply SUNSHINE-E booster once a month. Tacca, as well as most plants with large lush foliage, responds well to such treatments, the plant will look greener, healthier, and bloom more readily.

Black Tacca and White Tacca, as well as Tacca seeds