Garden Blog - Top Tropicals
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💞 Cassia or Bauhinia?
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):
- Cassia bicapsularis (Butterfly Bush) - is a fast-growing, low-maintenance shrub covered in bright yellow, butterfly-like blooms from fall through winter.
- Cassia x natalensis (Rainbow Cassia)
- Cassia grandis (Red cassia) - a medium size tree having profuse blooms of dark pink to crimson flowers throughout the Spring.
- 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)
- Cassia roxburghii (Ceylon Senna) - graceful tree with spreading, drooping branches appearing to be overweighed by its wealth of clustering red blossoms.
- 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.
- 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.
- 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."
Bauhinia Magic: Orchid-Like Blooms in a Compact Size
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:
- Bauhinia madagascariensis (Red Butterfly Orchid Tree). Blooms from winter through fall, up to 10 months a year. The most cold-hardy of all.
- Bauhinia blakeana (Hong Kong Orchid Tree). A large tree in the ground, but compact in pots if trimmed. Grafted trees flower right away. Winter bloomer, cold hardy to light frost.
- Bauhinia tomentosa (Yellow Orchid Tree). Flowers from Winter through Summer, cold hardy to light frost.
- Bauhinia acuminata (Dwarf White Orchid Tree). Blooms from summer through winter. Less cold hardy.
- Bauhinia monandra (Napoleon's Plume Orchid Tree). Almost everblooming with the longest flowering period. Less cold hardy.
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.
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Detailed Cassia and Bauhinia Care Guide
Outdoor Cassia and Bauhinia Care
- Light: Both Cassia and Bauhinia need at least 6 hours of direct sunlight daily. Cassias handle intense heat; Bauhinias can take light afternoon shade.
- Soil: Use loose, fast-draining soil. Mix equal parts garden soil, coarse sand, and compost.
- Watering: Keep evenly moist but never soggy. Cassias tolerate dry spells once established; Bauhinias prefer steady moisture. Water when the top inch feels dry.
- Feeding: For profuse flowering, feed with liquid Sunshine Boosters Megaflor that is safe to use with every watering, year around. You may also apply Green Magic controlled release fertilizer every 6 months. Bauhinias and Cassias respond quickly to feeding.
- Pruning: After flowering, prune lightly to shape and remove dead tips. Cassias can be trimmed to shrub form; Bauhinias stay bushy with pinching.
- Mulch: Add a 2-inch mulch layer around the base to conserve moisture and prevent weeds, but keep mulch off the trunk.
- Cold protection: Most Cassias handle brief frost; some Bauhinias like B. acuminata and B. monandra must be sheltered below freezing. For cold nights, cover with frost cloth or move containers into shelter.
- Dormancy: Outside of tropics, most Bauhinias drop leaves in winter for a short period of time, right before flowering and are called "semi-deciduous". Cassias stay evergreen.
Indoor or Porch Care (cool-climate growers)
- Container: Choose a sturdy pot with several drainage holes, one size larger than the root ball. Unglazed clay or thick plastic pots work best for heat regulation. Use a light, well-drained mix such as professional soilless mix Abundance. Both Cassias and Bauhinias dislike soggy roots. Add a thin layer of coarse gravel at the bottom to improve drainage. Repot every 1–2 years in spring
- Light: Brightest spot possible - south-facing window or heated sunroom. Supplement with a grow light if sunlight is weak.
- Temperature: Keep potted trees in warm environment for best results. The optimum temperature for Cassias and Bauhinias is between 60–85 F, although many species can tolerate cooler temperatures. Avoid cold drafts and sudden drops.
- Humidity: Average indoor humidity is fine; occasional misting keeps foliage glossy.
- Watering: Water sparingly in winter when growth slows; allow the top inch to dry between waterings. Do not let roots sit in water.
- Fertilizing: Feed with Sunshine Boosters Megaflor that is safe to use with every watering, year around, to maintain flowering indoors. You may also apply Green Magic controlled release fertilizer every 6 months.
- Pest watch: Check undersides of leaves for aphids or whitefly. A light spray of neem oil or insecticidal soap clears them fast.
"Whether you crave golden summer fireworks or soft orchid blooms that last nearly all year, both Cassia and Bauhinia bring pure joy to the garden. 💖 Bring color that never quits."
Did you know: Fall is the best planting season — roots grow faster and you’ll have flowers by spring!
Cassia vs Bauhinia: which is better as an everblooming container tree?
Cassia vs Bauhinia: which is better as an everblooming container tree?
- 🌸 Cassia (Senna) trees are very popular flowering trees - fast growing, free-flowering, relatively cold hardy, and they love the summer heat. Cassias come in several colors: yellow, orange, pink, red, and rainbow. Rainbow varieties (which are hybrids between yellow and pink cassias) are the most popular thanks to their multicolor blooms with swirls of yellow, pink, red, and orange. But while Rainbow Cassia is a spectacular flowering tree for southern gardens, is it a good choice for a container when you want color on your patio or pool deck?
- 🌸 Some yellow-flowering cassias make attractive bushes that bloom most of the year and stay compact, so they can be grown as container specimens:
- 🌸 When it comes to Rainbow or pink cassias such as Cassia javanica - Apple Blossom Tree or Cassia grandis- Red Cassia and other species and hybrids (Cassia marginata - Rainbow Shower Tree, Cassia roxburghii - Ceylon Senna, Cassia x nodosa - Pink Shower), these are usually more vigorous trees that may take several years to bloom. Their flowering season lasts from a few weeks to a couple of months. These trees grow moderately fast but typically need to reach about 10 feet before they start flowering.
- 🌸 So, the answer is: if you want rich, deep color year-round from a container tree, go with Bauhinias - Orchid Trees. Most varieties grow well in pots, stay compact, and reach blooming maturity within just one season. The following varieties are everblooming and can produce flowers for up to 10 months of the year:
Cassia didymobotrya- Popcorn Cassia
Senna alata - Empress Candles
Cassia fistula - Golden Shower (a compact size winter blooming tree)
- ▫️Bauhinia madagascariensis - Red Dwarf Orchid Tree. Blooms from winter through fall, up to 10 months a year. The most cold-hardy of all.
- ▫️Bauhinia blakeana - Hong Kong Orchid Tree. A large tree in the ground, but compact in pots if trimmed. Grafted trees flower right away. Winter bloomer, cold hardy to light frost.
- ▫️Bauhinia tomentosa - Yellow Orchid Tree. Flowers from Winter through Summer, cold hardy to light frost.
- ▫️Bauhiniamonandra - Napoleon's Plume Orchid Tree. Almost everblooming with the longest flowering period (less cold hardy than the first three).
- ▫️Bauhinia acuminata - Dwarf White Orchid Tree. Blooms from summer through winter (also less cold hardy than the first three).
🛒 Explore Cassia trees and Bauhinias (Orchid Trees)
📚 Learn more:
- ✦ How to add color to your yard with Cassias
- ✦ Rainbow Cassias and Why they are called "Rainbow"
- ✦ Napoleons Plume - Orchid Tree that blooms in a pot
- ✦ Bauhinia madagascariensis, or Red Butterfly Orchid Tree that NEVER Stops Blooming
- ✦ Rare Red Orchid Tree you may never find again but everyone wants
- ✦ Bauhinia acuminata, Dwarf Orchid tree - white and elegant
- ✦ 5 small tropical trees that bloom all summer or year around
- ✦ How to grow Orchid Trees in pots
#Container_Garden #Trees #How_to
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How to add color to your yard
Rainbow Cassia
- 🔜 Lovely Cassias we mentioned in earlier post are in full bloom today - they love the Summer Heat! They are our favorite Summer flowers.
- 🔜 Cassia (Senna) trees are compact, fast growing, tolerant to drought and poor soils, free-flowering and relatively cold hardy. Always a great choice!
- 🔜 Cassias come in several colors: yellow, orange, pink, red and rainbow.
- 🔜 Yellow-flowering cassias:
- 🔜 Pink/red and multi-color Rainbow cassias (which are hybrids between yellow and pink cassias):
Senna surattensis (Cassia glauca) - Scrambled Egg Bush
Cassia siamea - Kassod Tree
Cassia didymobotrya - Popcorn Cassia
Senna alata - Empress Candles
Cassia occidentalis - Fedegoso, Coffee Senna
Cassia grandis - Red Cassia
Cassia javanica - Apple Blossom Tree
Cassia marginata - Rainbow Shower Tree
Cassia roxburghii - Ceylon Senna
Cassia x nodosa - Pink Shower, Appleblossom.
❔ What cassias do you have in your garden?
Share photos in comments👇
🛒 Shop showy Cassia trees
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Need more ideas for compact and showy flowering trees? Try Rainbow Cassias
Rainbow cassia - Cassia Marginata.
- ♦️ Some hybrid cassias have spectacular color combinations and are called Rainbow Cassias.
- ♦️ We mentioned earlier some sunny, yellow-flowering cassias: Senna surattensis (Cassia glauca) - Scrambled Egg Bush, and Cassia siamea - Kassod Tree.
- ♦️ Other cassias can be pink or with multi-color flower combination, so-called Rainbow cassias (which are hybrids between yellow and pink cassias):
- ♦️ Cassia trees are compact, fast growing, tolerant to drought and poor soils, free-flowering and relatively cold hardy. Always a great choice!
Cassia grandis - Red Cassia
Cassia javanica - Apple Blossom Tree
Cassia marginata - Rainbow Shower Tree
Cassia roxburghii - Ceylon Senna
Cassia x nodosa - Pink Shower, Appleblossom.
❓ What cassias do you have in your garden? Share photos in comments👇
🎥 Rainbow cassia - Cassia Marginata.
🛒 Shop showy Cassia trees
#Butterfly_Plants #Trees
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Cassias - colorful flowering trees
📸 Pictures for the previous post, Cassias:
Cassia bicapsularis - Butterfly Bush
Cassia x natalensis - Rainbow Cassia
Cassia grandis- Red Cassia
Cassia didymobotrya- Popcorn Cassia, similar to Senna alata - Empress Candles
Cassia x nodosa - Pink Shower
Cassia roxburghii - Ceylon Senna
Cassia fistula - Golden Shower
Cassia javanica - Apple Blossom Tree
🛒 Explore Cassia trees
#Trees
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Why some cassias are called Rainbow?
Rainbow cassia - Cassia Marginata
Cassias, besides yellow, can be pink, red, or with a multi-color flower combination.
Rainbow cassias are hybrids between yellow and pink or red cassias.
Some of the most showy cassias are:
Cassia grandis - Red Cassia
Cassia javanica - Apple Blossom Tree
Cassia marginata - Rainbow Shower Tree
Cassia roxburghii - Ceylon Senna
Cassia x nodosa - Pink Shower, Appleblossom.
♦️ Cassia trees are compact, fast growing, tolerant to drought and poor soils, free-flowering and relatively cold hardy. Always a great choice!
❓ What cassias do you have in your garden?
Share photos in comments👇
📚 More about cassias from previous posts:
How to add color to your yard
Rainbow Cassias
🎥 Rainbow cassia - Cassia Marginata.
🛒 Shop showy Cassia trees
#Butterfly_Plants #Trees
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How to grow Popcorn with pretty flowers
Cassia didymobotrya (Popcorn Cassia)
Cassia didymobotrya (Popcorn Cassia)
Cassia didymobotrya (Popcorn Cassia)
Cassia didymobotrya (Popcorn Cassia)
- 🌽 Cassia didymobotrya (Popcorn Cassia) is a fun plant! When rubbed, its leaves emit a scent similar to buttered popcorn, hence its name.
- 🌽 It blooms with beautiful large clusters of sunny yellow flowers.
- 🌽 Perfect fast growing flowering shrub - ideal for places where you want to see a showy, pretty plant quickly
- 🌽 Butterfly magnet - one of the favorite flowers for all kinds of butterflies! Everyone who is working on a butterfly garden, plants Popcorn Cassia
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Butterfly Bush: Fast, Pretty, Low Maintenance...
Five unbeatable reasons to plant Butterfly Cassia
Q: I am trying to find some easy flowering shrub to screen the ugly corner of my neighbor's yard, can you suggest something fast growing and pretty?
A: One of our favorite flowering shrubs in Florida is the Cassia bicapsularis, commonly known as Scrambled Egg Bush or Butterfly Bush. It is one of the most desirable plants for the southern landscape. It has all the benefits any gardener may dream of, whether a beginner or an expert:
1. Very fast growing, can screen unwanted views and create a beautiful flowering hedge. Cassia bicapsularis is known for its rapid growth, making it an excellent choice for quickly transforming an unsightly corner into a vibrant and lush area. Its dense foliage and attractive yellow blooms add both beauty and privacy to your outdoor space.
2. Easy to grow, not fussy about soil or water, drought and flood tolerant, cold tolerant. Butterfly Bush is incredibly adaptable and resilient. It thrives in a variety of soil types, is not demanding when it comes to water, and can withstand both drought and occasional flooding. Additionally, it is cold tolerant and can withstand occasional frosts once established.
3. Blooms for many months, featuring especially in winter flowers from Fall to spring. Very pretty, large "sunny" flowers resembling bright yellow butterflies, hence the name. It is a generous bloomer, gracing your garden with vibrant yellow flowers for an extended period, particularly from fall to spring. The large, sunny blooms not only add visual appeal but also attract pollinators, enhancing the ecological balance of your garden.
4. Attracts lots of butterflies. As the common name suggests, the Butterfly Bush is a magnet for butterflies. If you enjoy the presence of these beautiful winged creatures in your garden, planting Cassia bicapsularis is an excellent way to encourage and support butterfly populations.
5. Low maintenance. Butterfly Bush can be trimmed and controlled at the desired shape if needed, but if you have room for a big bush in a full sun area - just let it go and it will form a nice dense bush without any pruning: this shrub is a low-maintenance delight. While it can be pruned and shaped according to your preferences, it also flourishes when left to grow naturally. Its ability to form a dense and attractive bush without constant pruning makes it an ideal choice for those seeking a fuss-free gardening experience.
If you're looking for a fast-growing, low-maintenance, and aesthetically pleasing solution to screen an unsightly corner, Cassia bicapsularis is an unbeatable choice. It ticks all the boxes for a beautiful and resilient flowering shrub in the southern landscape.
"...Without a doubt, Butterfly Cassia became one of my favorite plants during my visit to Florida for Christmas a few years ago. I only wish I could have taken it back home with me to Latvia. If only my windowsill hadn't already reached its greenhouse capacity!.." - Alex Butova.
To see more options for flowering shrubs, check out the reference chart Hedges with Benefits Chart.
Why all Floridians want Coffee Senna in their landscape and what it has to do with Coffee
Cassia occidentalis - Coffee Senna, Fedegoso, Privet Cassia
Cassia occidentalis - Coffee Senna, Fedegoso, Privet Cassia
Cassia occidentalis - Coffee Senna, Fedegoso, Privet Cassia
Cassia occidentalis - Coffee Senna, Fedegoso, Privet Cassia
- 🌼 Beauty without the hassle! Cassia occidentalis, commonly known as Coffee Senna, Fedegoso, or Privet Cassia, offers striking beauty and practical benefits, making it an excellent choice for low-maintenance landscapes and herbal medicinal garden.
- 🌼 From spring to fall, this medium-sized shrub showcases clusters of orange-yellow flowers that look like little yellow hummingbirds from the distance and attract butterflies and bees. The large, red-veined leaves add ornamental value even when not in bloom.
- 🌼 Coffee Senna thrives in full sun to partial shade and is drought- and cold-tolerant once established. Requires minimal care, making it ideal for gardeners seeking beauty without the hassle. Its spreading habit can provide a natural hedge or privacy screen.
- 🌼 Coffee Senna gets its common name from the resemblance of its seeds to coffee beans. The seeds are dark and oval-shaped, much like coffee beans. Despite the name, the seeds are not related to the actual coffee plant (Coffea arabica). The "Senna" part of its name refers to its botanical Senna genus, which includes various species traditionally used for medicinal purposes.
- 🌼 Health Benefits of Coffee Senna
Beyond its ornamental appeal, Coffee Senna has a history in traditional medicine:
- ✔️Digestive Aid: The seeds have mild laxative properties, aiding in constipation relief.
- ✔️Respiratory Support: Infusions of the root and dried flowers are used to treat gastrointestinal issues, colds, and flu .
- ✔️Skin Health: Poultices made from the roots and flowers are applied to treat skin disorders such as eczema .
- ✔️Nutritional Value: The seeds are rich in iron and other minerals, contributing to overall health .
🛒 Plant your own Coffee Senna
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