Garden Blog - Top Tropicals

Date: 22 Oct 2025

💞 Cassia or Bauhinia?

Collage  of  Cassia  and  Senna  flowering  trees:


1  –  Cassia  bicapsularis  (Butterfly  Bush),


2  –  Cassia  x  natalensis  (Rainbow  Cassia),


3  –  Cassia  grandis  (Red  Cassia),


4  –  Cassia  didymobotrya  (Popcorn  Cassia),  similar  to  Senna  alata 
 


(Empress  Candles),


5  –  Cassia  javanica  (Apple  Blossom  Tree),


6  –  Cassia  roxburghii  (Ceylon  Senna),


7  –  Cassia  fistula  (Golden  Shower  Tree),


8  –  Cassia  x  nodosa  (Pink  Shower).

Looking for a small tree that blooms like fireworks but still fits on your patio? We hear this question all the time at Top Tropicals: Cassia or Bauhinia? Both are tropical showstoppers, but they shine in very different ways.

🌞 Cassias: Sunshine Fireworks

Cassia trees are some of the most rewarding tropical bloomers you can grow. Fast-growing, free-flowering, and surprisingly cold-tolerant, they thrive in full sun and summer heat. Their bright clusters come in shades of yellow, orange, pink, red, and even multicolor blends. The famous Rainbow Cassias show swirls of coral, gold, and rose on the same tree, creating a living fireworks display.

For gardeners in warm regions, these trees become spectacular focal points in the landscape. In containers, compact yellow forms like Cassia didymobotrya (Popcorn Cassia) and Senna alata (Empress Candles) stay manageable and bloom freely through summer.

Cassias can also be grown in pots with pruning and patience. Once mature, they reward you with breathtaking color that turns any patio or pool deck into a tropical show. Most showy cassias (numbers correspond to the photos in the collage above):

  1. Cassia bicapsularis (Butterfly Bush) - is a fast-growing, low-maintenance shrub covered in bright yellow, butterfly-like blooms from fall through winter.
  2. Cassia x natalensis (Rainbow Cassia)
  3. Cassia grandis (Red cassia) - a medium size tree having profuse blooms of dark pink to crimson flowers throughout the Spring.
  4. Cassia didymobotrya (Popcorn Cassia), small tree producing golden-yellow flowers with a distinct scent of peanut butter that open from brown buds in late summer and autumn. Similar to Senna alata (Empress Candles)
  5. Cassia roxburghii (Ceylon Senna) - graceful tree with spreading, drooping branches appearing to be overweighed by its wealth of clustering red blossoms.
  6. Cassia x nodosa (Pink Shower) - is a spectacular medium-sized, fast-growing tree with cascading clusters of fragrant pink-and-white appleblossom blooms in spring and summer.
  7. Cassia fistula (Golden Shower) - to many tropical gardeners, the most beautiful of cassias with masses of bright gold flower clusters appear on almost every branch.
  8. Cassia javanica (Apple Blossom) - dazzles with dense clusters of pink-to-white blossoms that change shades as they bloom, creating a spectacular display that lasts for months.
"Cassias love the heat and sunshine," says Tatiana Anderson, Top Tropicals Plant Expert. "They are perfect for anyone who wants big bursts of color and doesn’t mind giving them space and light to grow."

👉 Explore Cassia Trees

Bauhinia Magic: Orchid-Like Blooms in a Compact Size

Collage  of  Bauhinia  orchid  trees:  top  left  –  Bauhinia  acuminata 
 


(Dwarf  White  Orchid  Tree),  middle  left  –  Bauhinia  blakeana  (Hong  Kong 
 


Orchid  Tree),  bottom  left  –  Bauhinia  monandra  (Napoleon’s  Plume 
 


Orchid  Tree),  top  right  –  Bauhinia  madagascariensis  (Red  Dwarf  Orchid 
 


Tree),  and  bottom  right  –  Bauhinia  tomentosa  (Yellow  Orchid 
 


Tree)

Bauhinia orchid trees: top left – Bauhinia acuminata (Dwarf White Orchid Tree), middle left – Bauhinia blakeana (Hong Kong Orchid Tree), bottom left – Bauhinia monandra (Napoleon’s Plume Orchid Tree), top right – Bauhinia madagascariensis (Red Dwarf Orchid Tree), and bottom right – Bauhinia tomentosa (Yellow Orchid Tree)

Bauhinia trees known as Orchid Trees, bring a touch of tropical luxury to any space. Their butterfly-shaped leaves and orchid-like blossoms appear in shades of red, pink, purple, white, and yellow, often lasting up to ten months a year. Bauhinias are ideal for gardeners who want nonstop color in a manageable size. Most species grow well in large pots and bloom young, often within the first season.

The following compact varieties stay neat and flower almost continuously in warm weather:

The Hong Kong Orchid Tree is especially prized because it is sterile and produces no messy seed pods, keeping patios clean. Grafted Buhinia blakeana trees begin blooming while still small, making them perfect for containers or tight spaces.

"Bauhinias are generous bloomers," Tatiana explains. "They respond beautifully to regular feeding and full sun. If nights turn too cold, just move the pot to a sunny porch - they’ll keep their tropical charm most of the year."

Give them full sun, regular fertilizer, and a well-drained mix such as Sunshine Abundance, and they will reward you with months of vivid blooms. When nights turn too cold, simply move the pot to a sunny porch or bright window. Bauhinias adjust beautifully and keep their tropical grace year after year.

🎥 Watch Short Videos:

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👉 Explore Bauhinias - Orchid Trees

Date: 9 Jul 2019

Growing desert roses

Q: I purchased a Desert Rose and planted it in Adenium mix. I keep it in full sun with once a week watering assuming this is a desert plant that likes lots of sun. Some leaves turned yellow and now I am not sure should I move it into shade or need to water more? Or maybe fertilize with something?

A: Desert Rose - Adenium, unlike cacti and other succulents, prefers filtered light. It can grow in full sun but leaves look healthier in light shade. Watering must be very moderate, however don't let soil harden like a rock: water again right after the soil gets dry. We suggest to use special Adenium Mix. Cactus mix may work well, as well as regular potting mix, in which case it is recommended to add a bit of limestone (we simply put sea shells on top of the pot - it looks very pretty!) - because adeniums prefer slightly alkaline soil (while most of tropical plants like acidic soils). If leaves turn yellow, this may be a sign of underwatering. Use water soluable fertilizer with high phosphate as foliage spray, and only on healthy plants, according to label dosage. It helps both caudex growth and flowering. Make sure to avoid fertilizer contact with a caudex.

RECOMMENDED SUPPLIES:
Adenium Plant Food - Flower and Caudex Booster
SUNSHINE-BC - Caudex booster
Adenium Soilless Mix

Read more about growing Adeniums:
What you need for successful growing Adeniums
Growing Exotic Adeniums

Date: 16 Nov 2019

Meet PeopleCats of TopTropicals. Charlie, the Indoor Hunter

Carlie was a kitty drop off with LadyBug, Rickie, and Purry.
Charlie is Jamie's baby. She has an attitude of a teenager, one minute she loves you and the next - wants nothing to do with you. Carlie stays with the inside PeopleCats, she says it's too big in the outside world for her and she gets scared. Carlie has a fun game (fun to her): she plays around 2:00 am in the morning, she loves to drag random items down the hall (socks, toys, shirts, even blankets) in her mouth MEOOOWWWING as loud as she can. She then sets the items down on her human's bedroom rug and waits for her human to say thank you. We're pretty sure her hunting instinct is off...

Check out and more Cat of the Day stories.

2019, from Top to Bottom: Moe, Charlie, Bagheera, and Snitch. 2016: Charlie

From left to right: Purry, LadyBug, Charlie, and Ricki - 2016

Date: 29 Nov 2020

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.

More information on winter cold protection of tropical plants and zone pushing:

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.

Date: 28 Sep 2025

Guava Tree Plant Care

Tips from Top Tropicals Plant Expert - Tatiana Anderson

Guava  trees  for  sale  in  3-gallon  nursery  pots,  healthy  young  plants 
 


with  green 
 


foliage.

Where to Plant Outdoors

Guavas love full sun — aim for 6–8 hours of direct light. They’re adaptable to many soils but do best in well-drained, organic-enriched mixes. Plant them in a spot where you can water easily; guavas are thirsty trees during fruiting.

Container & Indoor Growing

Don’t have space or live in a cooler climate? Guavas thrive in large pots. Use well-drained potting mix. LINK TO OUR SOIL Keep them on a sunny patio during warm months and bring them indoors when nights dip below freezing. Compact varieties like Dwarf Hawaiian Rainbow or Tikal are especially good for pots.

Winter Care

Mature guavas can handle a light frost (down into the high 20s F), but young plants need protection. If planted outdoors, cover them with frost cloth on cold nights. Container guavas can be wheeled into a garage, greenhouse, or bright indoor window until the weather warms.

Watering and Fertilizing

Water deeply once or twice a week, more often in hot weather or when fruit is developing. They don’t like soggy soil, but they won’t complain about short floods either. Fertilize 3–4 times a year during the growing season with a balanced fruit tree fertilizer. Guavas especially love potassium and phosphorus for strong flowering and heavy crops. We recommend liquid crop booster Sunshine C-Cibus and balanced controlled release fertilizer Green Magic.

Pruning

Prune after fruiting to keep them compact and open up airflow. Remove crossing or dead branches. In containers, trim back vigorous shoots regularly to manage size and encourage more fruiting wood.

Pests and Problems

Guavas are generally tough and pest-resistant. The main thing to watch for in humid or rainy climates is mealybugs - those cottony white clusters on leaves or stems. They're easy to manage with neem oil or a quick spray of horticultural soap.

Fruit time

Guavas fruit young - often within a year or two.

Pollination

Guavas are self-pollinating, so you'll get fruit even with a single tree. Planting more than one tree, however, often boosts harvests and gives you a longer fruiting season.

If you've ever wanted instant gratification from a fruit tree, guava is it.

Ruby  Supreme  Guava  tree  with  a  large  ripe  yellow  fruit,  variety  known 
 


for  sweet  pink  flesh  and  reliable 
 


harvests.

🍴 Guava Recipes

With all that fruit, the next question is always: "What do I do with it?" Here are our favorites:

  • Cas Guava: Make Agua de Cas

    Boil halved Cas Guava fruits with sugar, simmer, strain, and bottle. Dilute with water when serving. The concentrate keeps for months in the fridge.
    Check out the recipe.

  • Hawaiian Gold: Make Drinks

    Perfect for Mojitos or Margaritas. Sweet, tangy juice pairs beautifully with lime and mint. Learn more

  • Araca Pera: Guava Wine

    Famous in Brazil, where the fruit is turned into a vibrant rosу wine. Locals say it’s the taste of summer in a glass — and yes, you can make it at home too. Learn more...

  • Quick snack: Guava Grilled Cheese

    Spread guava paste or fresh mashed fruit with cheese, grill until golden. Sweet and savory heaven. Learn more...

  • Simple Guava Juice

    Blend ripe guavas with water, ice, and a little sugar if you like. Instant refreshment.

✅Ready to Grow? Whether you want fresh juice, sweet fruit, or even your own guava wine, we’ve got the best varieties in stock right now. Your future self, sipping guava juice on a hot summer afternoon, will thank you.

👉 Order your guava tree today

Tabby  cat  sitting  between  a  glass  of  yellow  guava  juice  with  white 
 


guavas  and  a  glass  of  pink  guava  juice  with  green  guavas  and  cut  pink  guava 
 


fruit.