Table of Contents
- Introduction
- Why Tropicanna Canna Lilies Stand Out
- Choosing the Best Spot for Your Canna Lily Bulbs
- How to Plant Tropicanna Canna Lily Bulbs
- Caring for Tropicanna Cannas Throughout the Summer
- Growing Tropicanna in Containers
- Overwintering Tropicanna Canna Lily Bulbs
- Realistic Expectations and Troubleshooting
- Creating a Tropical Design
- Summary Checklist for Tropicanna Success
- Conclusion
- FAQ
Introduction
Few plants bring a sense of tropical wonder to the backyard like the Canna Tall Tropicanna canna lily. With its oversized, multi-colored leaves and brilliant orange flowers, it looks like a piece of living art. Watching the first sunlight of the morning filter through those translucent, neon-striped leaves is one of the most rewarding moments a gardener can experience. At Longfield Gardens, we love how these high-impact plants can transform a standard garden bed into an exotic getaway in just a few short months.
This post will cover everything you need to know about growing and caring for Tropicanna canna lily bulbs. Whether you are planting them in a large garden border or a stylish patio container, these tips will help you enjoy their spectacular foliage and flowers all summer long. Tall Cannas are versatile, vigorous, and surprisingly easy to manage once you understand their basic needs.
Tropicanna canna lilies are the perfect choice for home gardeners who want maximum visual impact with a straightforward care routine.
Why Tropicanna Canna Lilies Stand Out
The original Canna Tall Tropicanna (often known by the variety name ‘Phasion’) is widely considered the plant that brought cannas back into style. While traditional cannas were often grown strictly for their flowers, Tropicanna changed the game by offering foliage that is arguably more beautiful than the blooms.
The leaves emerge with deep purple and bronze tones, but as they unfurl, they reveal dramatic pinstripes of gold, rose, lime green, and crimson. When the sun shines through the foliage, the colors glow like stained glass. This unique variegation earned the variety the prestigious Royal Horticultural Society Award of Garden Merit, a sign that the plant is both beautiful and reliable in the home garden.
Beyond the foliage, Tropicanna produces large, vibrant orange blossoms that sit high above the leaves on sturdy stems. These flowers are a magnet for hummingbirds and butterflies, adding movement and life to your outdoor space. Because the plants can reach heights of four to six feet, they serve as excellent vertical accents, privacy screens, or "thrillers" in large mixed containers.
Key Takeaway: Tropicanna is prized for its multi-colored, translucent foliage and its ability to attract pollinators with bright orange summer blooms.
Choosing the Best Spot for Your Canna Lily Bulbs
Cannas are tropical plants at heart, which means they have two main requirements: heat and sun. To get the best color from the variegated leaves of a Tropicanna, you need to match the plant's needs with the right location in your yard.
Sunlight Requirements
For the most vivid colors and consistent blooming, plant your cannas in full sun. In most regions, this means at least six to eight hours of direct sunlight each day. While they can grow in partial shade, you may find that the leaf colors are less intense and the plant produces fewer flowers. If you live in an extremely hot climate with intense afternoon sun, a little bit of light afternoon shade can help prevent the leaf edges from drying out, but sun is generally your best friend with this variety.
Soil and Drainage
Cannas are unique because they are very tolerant of different soil types. While most bulbs require perfect drainage to avoid rotting, cannas are happy in moist or even wet soil. They are often used near ponds or in boggy areas where other plants might struggle.
However, "moist" does not mean "stagnant." They perform best in soil that is rich in organic matter. If your soil is heavy clay or very sandy, digging in some compost or well-rotted manure before planting will provide the nutrients they need to fuel their rapid growth. For a broader look at canna basics, see our All About Cannas guide.
Space to Grow
Because Tropicanna cannas grow quite large, they need plenty of "elbow room." Give them about 18 to 24 inches of space between each bulb. This ensures that air can circulate around the large leaves, which keeps the plants healthy and prevents them from shading out smaller neighbors. For more on how far apart to plant cannas, see our spacing guide.
How to Plant Tropicanna Canna Lily Bulbs
In the gardening world, canna "bulbs" are actually rhizomes. A rhizome is a thick, fleshy root-like structure that stores energy for the plant. Planting them correctly is the first step toward a successful growing season.
Timing is Everything
The most common reason a canna fails to sprout is that it was planted in soil that was too cold. Cannas are tropical and will not begin to grow until the soil temperature is consistently at or above 60°F. In many parts of the US, this is well after the last spring frost.
A good rule of thumb is to wait until you are ready to plant your tomatoes or peppers. If the ground feels cold to the touch, wait another week or two. If you want a head start, you can plant your rhizomes in pots indoors about four to six weeks before the last frost date and move them outside once the weather warms up. For more detail, see our How to Start Canna Bulbs for a Tropical Summer Garden guide.
Planting Depth and Direction
Planting canna rhizomes is a simple process. Follow these steps for the best results:
- Dig a hole: Create a space about four inches deep.
- Check the eyes: Look at the rhizome for small bumps or "eyes." These are the growth points where the stems will emerge.
- Lay it flat: Place the rhizome horizontally in the hole. It doesn't matter which way the eyes are pointing, as the plant will naturally grow toward the light, but laying it flat is the most natural position.
- Cover and water: Fill the hole with soil and water the area well to settle the earth around the rhizome.
Getting the planting depth right is the first step toward a successful growing season.
What to Do Next
- Label the spot where you planted your cannas so you don't accidentally dig them up before they sprout.
- Monitor the soil moisture; keep it consistently damp but not flooded while you wait for the first shoots.
- Be patient—cannas can take three to five weeks to show their first green tips above the soil, especially if the weather is fluctuating.
Caring for Tropicanna Cannas Throughout the Summer
Once your Tropicanna cannas are established and growing, they are very low-maintenance. However, because they grow so fast—often reaching five feet in just a few months—they need plenty of fuel and hydration.
Watering for Success
Think of cannas as "thirsty" plants. Their large leaves lose moisture quickly in the summer heat. During the peak of summer, they may need water several times a week. If the soil feels dry an inch below the surface, it’s time to water. If you are growing them in containers, you may even need to water them daily during a heatwave. Deep watering is better than frequent light sprinkles, as it encourages the roots to grow deep into the soil.
Fertilizing Your Cannas
Because cannas produce so much foliage and many flowers in a single season, they are considered "heavy feeders." To keep the foliage looking its best and the flowers coming, apply a balanced, all-purpose fertilizer once a month during the growing season. Follow the instructions on the product label for the correct amount. Alternatively, you can use a slow-release fertilizer at planting time to provide a steady stream of nutrients throughout the summer.
Deadheading for More Blooms
The bright orange flowers of Tropicanna grow in clusters. As the individual flowers fade, you can pinch them off to keep the plant looking tidy. This is called deadheading. Once an entire flower stalk has finished blooming, cut the stalk back to the next leaf node. This encourages the plant to put its energy into producing new flower spikes rather than seeds.
Key Takeaway: Success with cannas comes down to "The Big Three": plenty of sun, consistent water, and regular fertilizer.
Growing Tropicanna in Containers
If you have a small patio or balcony, or if you simply want a stunning focal point near your front door, Tropicanna cannas are excellent for growing canna bulbs in containers.
Choosing the Right Pot
Because these plants grow tall and top-heavy, you need a large, sturdy pot. A container that holds at least 10 to 15 gallons is a good starting point for a single rhizome. Heavier materials like ceramic or stone are less likely to tip over in the wind than lightweight plastic. Ensure the pot has drainage holes, though you can place a saucer underneath to help retain some moisture during hot days.
Potting Mix
Use a high-quality, well-draining potting soil rather than garden soil, which can become too compact in a container. Mix in some compost or a bit of slow-release fertilizer to give your cannas a head start.
Maintenance in Pots
Plants in containers dry out much faster than those in the ground. Check the moisture level daily. If you find your cannas are growing too large for their pot by mid-summer, you can simply trim back some of the outer leaves to maintain the shape. At the end of the season, it is much easier to "lift" and store rhizomes that have been grown in pots. For more container-spacing details, see our How Many Canna Bulbs Should I Plant Together in Pots? guide.
Overwintering Tropicanna Canna Lily Bulbs
In Hardiness Zone Map 7 through 10, Tropicanna cannas can usually stay in the ground year-round. In these warmer regions, simply cut the foliage back to the ground after it turns brown in the fall and cover the area with a few inches of mulch for protection.
If you live in zone 6 or colder, cannas are considered "tender perennials." This means they will not survive the freezing winter temperatures in the ground. However, you don't have to buy new ones every year. You can easily "lift" the rhizomes and store them indoors until spring.
How to Lift and Store Rhizomes
- Wait for frost: Let the first frost of the season blacken the foliage. This tells the plant to go dormant and move its energy down into the rhizome.
- Cut them back: Cut the stems down to about three or four inches above the soil line.
- Dig carefully: Use a garden fork or shovel to gently lift the clump of rhizomes out of the ground. Be careful not to bruise or cut the fleshy roots.
- Clean and dry: Shake off the excess soil and let the rhizomes dry in a shaded, frost-free area for a few days.
- Store: Place the rhizomes in a cardboard box or a breathable bag filled with slightly damp peat moss, vermiculite, or wood shavings.
- Keep them cool: Store the box in a cool, dark, and dry place (like a basement or crawl space) where the temperature stays between 40°F and 50°F.
Check on your stored rhizomes once or twice during the winter. If they look shriveled, lightly mist the packing material with water. If you see any soft spots or rot, remove the affected pieces immediately.
Realistic Expectations and Troubleshooting
Gardening is a rewarding journey, but it is rarely a perfect science. Understanding what to expect can help you enjoy the process without stress.
Why Isn't My Canna Growing?
If you planted your Tropicanna bulb several weeks ago and see nothing, don't worry. The most likely culprit is soil temperature. Cannas "sleep" until the ground is truly warm. If the spring has been particularly rainy or cool, they will simply wait. Avoid the temptation to dig them up and check on them, as this can disturb the fragile new roots. As long as the rhizome was firm when you planted it and the area is not flooded, it will sprout once the heat arrives.
Dealing with Pests
The most common pest for cannas in some regions is the canna leaf roller. These are small caterpillars that stitch the leaves together before they unfurl. If you see rolled-up leaves or small holes, you can often simply unroll the leaf and remove the caterpillar by hand. Keeping your plants healthy with enough water and food makes them much more resilient to pests.
Leaf Tearing
Because the leaves of Tropicanna are so large and thin, they can sometimes tear in high winds. This is normal and doesn't hurt the plant. To minimize this, try to plant your cannas in a location that has some protection from the strongest prevailing winds, such as near a fence or the side of a house.
Creating a Tropical Design
Tropicanna cannas are so bold that they can be a bit intimidating to design with. However, their variety of colors actually makes them easy to pair with other plants.
- Complementary Colors: The orange flowers look stunning against blue or purple neighbors, like salvia or lavender.
- The "Thriller" Effect: In a large container, use Tropicanna as the tall center plant (the thriller). Surround it with "fillers" like coleus or begonias, and "spillers" like sweet potato vine or creeping Jenny.
- Mass Plantings: Planting a row of five or six Tropicanna cannas along a walkway or fence creates a dramatic, high-energy hedge that lasts all summer.
We often recommend mixing the original Tropicanna with its relatives, such as Tropicanna Gold (which has lime and yellow stripes).
The Canna Assorted Collection is an easy way to get a layered look with more than one canna variety.
Tropicanna Black (which features dark, moody burgundy leaves) adds deeper contrast, and using them together creates a multi-layered look that feels like a professional botanical garden display.
Summary Checklist for Tropicanna Success
To ensure your garden glows with color this season, keep these simple steps in mind:
- Wait for Warmth: Do not plant outdoors until the soil is consistently 60°F or warmer.
- Sun is Essential: Choose a spot with at least 6 to 8 hours of direct sunlight.
- Keep it Moist: Cannas love water; don't let the soil dry out completely.
- Feed Regularly: Use an all-purpose fertilizer once a month to support rapid growth.
- Store for Winter: If you live in a cold climate, lift the rhizomes after the first frost to save them for next year.
Key Takeaway: Tropicanna cannas are vigorous growers that reward a little bit of extra water and fertilizer with some of the most spectacular foliage in the plant world.
Conclusion
Tropicanna canna lilies are more than just plants; they are a summer-long event in your garden. Their ability to grow from a small rhizome into a towering, colorful masterpiece in a single season is a testament to the joy of gardening. By focusing on the basics—warm soil, plenty of sun, and consistent moisture—you can enjoy a tropical paradise right in your own backyard. At Longfield Gardens, we take pride in providing high-quality rhizomes. Our 100% Quality Guarantee helps you achieve these vibrant results with confidence.
- Select a sunny, warm spot for planting.
- Maintain consistent moisture and nutrients.
- Enjoy the hummingbird-friendly blooms and glowing foliage.
We hope this guide makes you feel ready to add the electrifying colors of Tropicanna to your garden this year.
"Gardening should be a source of relaxation and beauty. With a plant as vigorous and stunning as the Tropicanna canna, success is well within reach for every gardener."
FAQ
How long does it take for Tropicanna canna lily bulbs to sprout?
It usually takes three to five weeks for the first shoots to appear above the ground. This timeline depends heavily on the soil temperature; if the ground is below 60°F, the rhizome will remain dormant. Once the weather stays consistently warm, you will see rapid growth. For a deeper dive, see our How Fast Do Canna Bulbs Grow? Your Guide to Rapid Blooms article.
Can I grow Tropicanna canna lilies in the shade?
While they can survive in partial shade, it is not recommended. Sunlight is what fuels the intense variegation in the leaves and the production of flowers. In a shady spot, the colors may appear dull or mostly green, and the plant may become "leggy" as it stretches toward the light.
Do I need to dig up my canna bulbs every year?
This depends on your USDA hardiness zone. If you live in Zone 7 or warmer, you can usually leave them in the ground with a layer of mulch for winter protection. In Zones 6 and colder, the rhizomes will freeze and die if left outside, so you must lift them and store them in a cool, frost-free place for the winter.
Why are the edges of my canna leaves turning brown?
Brown edges, or "leaf scorch," are usually caused by a lack of water or very dry air. Cannas have a high transpiration rate, meaning they lose water quickly through their large leaves. Increase your watering frequency, especially during hot, windy weather, to keep the foliage looking lush and healthy.