Growing President Canna Bulbs for Brilliant Summer Color

Table of Contents

1. Introduction
2. What Are President Canna Bulbs?
3. Choosing the Best Planting Location
4. When to Plant Your Canna Rhizomes
5. Step-by-Step Planting Guide
6. Caring for President Cannas Through the Season
7. Growing President Cannas in Containers
8. Overwintering and Storage
9. Troubleshooting Common Growth Issues
10. Conclusion
11. FAQ

Introduction

Nothing says summer quite like the tropical flair of canna lilies. Among the many varieties available, the President canna is a timeless favorite for its reliable performance and stunning visual impact. These plants bring a sense of high-energy beauty to the garden with their oversized green leaves and vibrant red flowers. At Longfield Gardens, we love how these easy-to-grow perennials transform a standard backyard into a lush, private oasis with very little effort.

This guide is designed for home gardeners who want to master the art of growing canna rhizomes (technically called rhizomes). Whether you are planting in large garden beds or decorative patio containers, we will cover everything you need to succeed. You will learn about the ideal planting conditions, simple care routines, and how to keep your plants healthy year after year. President canna bulbs offer a rewarding way to add vertical interest and bold color to your landscape from midsummer through the first frost.

What Are President Canna Bulbs?

President cannas are classic "heirloom" style cannas that have remained popular for decades. While some modern varieties focus on variegated foliage, or dark foliage, The President is celebrated for its clean, bright green leaves and massive, scarlet-red flower spikes. The blooms are soft to the touch and appear in clusters at the top of sturdy stems.

These plants typically grow to a height of 3 to 4 feet, though they can reach up to 5 feet in perfect conditions. This mid-range height makes them incredibly versatile. For gardeners who like this size range, the Medium Cannas collection is a natural fit. They are tall enough to act as a living screen or a backdrop for shorter annuals, but they are not so tall that they become floppy or difficult to manage in a standard garden.

One of the most exciting aspects of growing these cannas is their appeal to local wildlife. The tubular shape of the red flowers is perfectly designed for hummingbirds. If you plant a grouping of President cannas near a window or patio, you are likely to enjoy frequent visits from these energetic birds throughout the summer months. For even more dramatic height, browse the Tall Cannas collection.

Choosing the Best Planting Location

Success with cannas starts with matching the plant to the right environment. Like most tropical plants, cannas have a few specific preferences that help them thrive. Getting the location right is the most important step in ensuring a long season of blooms.

Sunlight Requirements

President cannas are sun-worshipers. To produce those iconic red flowers and maintain strong stems, they need at least six to eight hours of direct sunlight every day. In cooler northern climates, full sun is essential. If you live in a region with extremely high summer temperatures, your plants may appreciate a little bit of dappled shade in the late afternoon to prevent the leaf edges from drying out. However, if they are planted in too much shade, the plants will become "leggy" (tall and weak) and may produce few or no flowers.

Soil and Drainage

In the gardening world, drainage refers to how quickly water moves through the soil. Cannas are unique because they enjoy more moisture than many other bulbs, but they still need soil that doesn't stay soggy or stagnant.

The ideal soil for President canna bulbs is rich in organic matter. If your soil is heavy clay or very sandy, you can improve it by mixing in some compost or well-rotted manure before planting. This helps the soil hold onto the moisture the plants need while allowing excess water to drain away from the rhizomes.

Space to Grow

Because cannas grow from rhizomes that spread horizontally underground, they need room to expand. When choosing a spot, consider the mature width of the plant. A single President canna can easily spread 12 to 18 inches wide in a single season. If you are planting a row of them, make sure they aren't crowded by large shrubs or trees that might compete for water and nutrients.

Key Takeaway: For the best results, pick the sunniest spot in your garden with soil that stays moist but never stays underwater for long periods.

When to Plant Your Canna Rhizomes

Timing is everything when it comes to tropical bulbs. Since cannas are native to warm climates, they are very sensitive to cold temperatures. Planting too early in cold, wet soil can cause the rhizomes to struggle or rot before they even start growing. If you want to confirm your local conditions, check the Hardiness Zone Map.

We recommend waiting until all danger of frost has passed in your area. A good rule of thumb is to wait until the soil temperature has reached at least 60°F. If the ground feels warm to your touch, it is likely ready for planting. In most parts of the United States, this happens in late spring or early summer.

If you live in a northern zone with a short growing season, you can give your President cannas a head start. About four to six weeks before the last expected frost, plant the rhizomes in pots indoors. Keep them in a warm, sunny spot and move them outdoors only when the weather is consistently warm. This "jump start" ensures you get flowers earlier in the summer.

Step-by-Step Planting Guide

Planting President canna bulbs is a straightforward process. You do not need special tools or advanced skills to get them in the ground. Follow these simple steps for a successful start:

1. Prepare the soil: Use a garden fork or shovel to loosen the soil to a depth of about 6 to 8 inches. This makes it easier for the new roots to grow.
2. Dig a shallow hole: Cannas do best when they are planted relatively shallowly. Dig a hole or a trench that is about 3 to 4 inches deep.
3. Position the rhizome: Look at the rhizome for small bumps or "eyes." These are the points where the new sprouts will emerge. Lay the rhizome horizontally in the hole with the eyes facing upward. If you can’t tell which side is the top, don't worry—the plant will naturally find its way toward the light.
4. Check the depth: Once the rhizome is in the hole, cover it with 1 to 2 inches of soil. Planting them much deeper than this is a common mistake that can delay sprouting.
5. Space them out: If you are planting multiple rhizomes, space them 12 to 18 inches apart. This gives each plant enough air circulation and room to spread. For more detail, see How far apart do you plant canna bulbs?
6. Water deeply: Immediately after planting, give the area a good soak. This settles the soil around the rhizomes and "wakes up" the plant.

What to do next:

• Check the weather forecast for any late-season cold snaps.
• Monitor the soil moisture daily until you see the first green shoots.
• Once sprouts appear, keep the area weed-free so the young plants don't have to compete for resources.

Caring for President Cannas Through the Season

Once your cannas are established and growing, they are relatively low-maintenance. However, because they grow so quickly and produce such large leaves, they have a high demand for "fuel" in the form of water and nutrients.

Watering Rules

Cannas are "thirsty" plants. Unlike many garden flowers that prefer to dry out between waterings, cannas like consistent moisture. During the heat of the summer, you may need to water them several times a week. If the soil feels dry an inch below the surface, it is time to water.

If you are growing President cannas in sandy soil, you will need to water more frequently. In heavier soil, be careful not to overdo it to the point of creating a swamp. The goal is to keep the soil feeling like a wrung-out sponge.

Feeding Your Plants

To sustain their rapid growth and heavy blooming, cannas benefit from regular fertilizing. We suggest using a balanced, all-purpose fertilizer once a month during the growing season. You can also use a slow-release fertilizer at the time of planting to provide a steady stream of nutrients over several months. Because they are "heavy feeders," they respond very well to soil that has been enriched with organic compost.

Deadheading and Tidying

Deadheading is the process of removing faded flowers. While President cannas will continue to bloom even if you do nothing, removing the old flower spikes keeps the plant looking neat. It also prevents the plant from putting energy into producing seeds, directing that energy back into more flowers and stronger rhizomes.

When a flower cluster has finished blooming, cut the stalk back to the next set of leaves. Be careful not to cut off any new flower buds that may be forming lower down on the same stem.

Growing President Cannas in Containers

If you have a small patio, balcony, or simply want to add a splash of red to your entryway, President cannas are excellent candidates for container gardening. They bring height and drama to mixed pots and look great as a standalone "thriller" plant. If you want a ready-made mix for pots and beds, the Canna Assorted Mix is another easy option.

Choosing the Right Pot

Because President cannas can grow up to 4 feet tall, they need a sturdy, heavy pot that won't tip over in the wind. A pot that holds at least 5 to 7 gallons of soil is a good size for a single rhizome. Ensure the pot has drainage holes at the bottom so water doesn't sit at the roots.

Container Care Tips

Plants in containers dry out much faster than those in the ground. In the peak of summer, a potted canna may need water every single day. You will also need to fertilize more frequently—about every two weeks—because nutrients leach out of the soil every time you water.

Using a high-quality potting mix (not garden soil) is essential for container success. Potting mix is designed to be lightweight and provide the perfect balance of air and moisture for container-grown plants. For a bold container choice with dark foliage, Canna Tall Tropicanna Black is a striking option.

Overwintering and Storage

Whether your President cannas return every year depends on your local climate. Cannas are hardy in USDA zones 8 through 11. In these warm regions, you can leave the rhizomes in the ground all year. Simply cut the foliage back to the ground after it turns brown in late fall.

If you live in Zone 7 or colder, the winter frost will kill the rhizomes if they stay in the ground. However, you can easily save them to plant again next year by following these steps:

1. Wait for the first frost: Let the first light frost blacken the foliage. This sends a signal to the plant to go dormant. For a fuller explanation, see When do I dig up canna lily bulbs?
2. Cut back the stems: Cut the stalks down to about 2 or 3 inches above the soil line.
3. Dig carefully: Use a garden fork to gently lift the clump of rhizomes out of the ground. Be careful not to bruise or cut the "tubers."
4. Clean and dry: Shake off excess soil. Let the rhizomes dry in a shaded, frost-free area for a few days.
5. Store for winter: Place the rhizomes in a cardboard box or a plastic bin with some air holes. Surround them with slightly damp peat moss, perlite, or wood shavings.
6. Find a cool spot: Store the box in a cool, dark place (between 45°F and 55°F), such as a basement or crawl space. Do not let them freeze.

Check on your stored rhizomes once or twice during the winter. If they look shriveled, mist the packing material with a little water. If any parts look soft or rotten, remove them immediately.

Key Takeaway: In cold climates, lifting canna rhizomes in the fall is a simple way to preserve your investment and enjoy the same beautiful plants year after year.

Troubleshooting Common Growth Issues

President cannas are generally very robust, but you might occasionally run into a few minor hurdles. The good news is that most issues are easy to resolve with small adjustments.

• Yellowing Leaves: If the lower leaves are turning yellow, it may be a sign that the plant needs more fertilizer or more consistent water. If the whole plant looks pale, it might not be getting enough sunlight.
• No Blooms: If your plant has plenty of leaves but no flowers, it is almost always due to a lack of sun. Moving the plant to a brighter spot usually solves the problem. It can also happen if the soil is too high in nitrogen, which encourages leaf growth at the expense of flowers.
• Tattered Leaves: Canna leaves are large and can sometimes be torn by strong winds or snacked on by caterpillars. To keep them looking their best, plant them in a spot protected from heavy winds and keep an eye out for leaf-rolling caterpillars. A quick manual removal of any pests you see is usually all that is needed.
• Slow Growth in Spring: If your rhizomes are slow to sprout, the soil is likely still too cool. Cannas really wait for the heat. Be patient—once the weather stays consistently warm, they will grow very rapidly.

Conclusion

Growing President canna bulbs is one of the easiest ways to bring a bold, tropical aesthetic to your home garden. With their vibrant red flowers and lush green foliage, these plants provide months of color and attract beautiful pollinators like hummingbirds and butterflies. By focusing on the basics—plenty of sun, consistent water, and warm soil—you can enjoy a spectacular display with very little stress.

At Longfield Gardens, we want every gardener to feel confident in their ability to grow a beautiful yard. The President canna is a reliable, high-performing variety that rewards even the busiest gardener with stunning results. Whether you plant them in a dedicated flower bed or a decorative pot on your porch, these classic beauties are sure to be a highlight of your summer season.

• Sun: Aim for 6+ hours of direct sunlight.
• Water: Keep the soil consistently moist.
• Depth: Plant rhizomes 1-2 inches deep.
• Zones: Lift and store rhizomes if you live in Zone 7 or colder.

Ready to add a tropical touch to your landscape? Start planning your sunny border today and get ready to welcome the hummingbirds to your garden!

FAQ

How long does it take for President canna bulbs to bloom?

Once the weather is warm and the rhizomes have sprouted, you can usually expect to see the first flowers in about 10 to 12 weeks. The exact timing depends on how much sun the plants receive and how warm the soil stays throughout the early summer.

Can I grow President cannas in partial shade?

While cannas can survive in partial shade, they will not bloom as well as they do in full sun. You may find that the plants grow taller and thinner as they "reach" for the light, and the red flower clusters will be smaller and less frequent.

Do President canna bulbs need to be divided?

Yes, cannas are vigorous growers and will multiply underground over time. To keep the plants healthy and prevent overcrowding, we recommend digging up and dividing the rhizomes every two to three years in the spring before replanting.

Are President cannas deer resistant?

Cannas are generally considered to be deer resistant because their thick, fibrous leaves are not a favorite snack for most wildlife. While no plant is 100% "deer-proof" if food is scarce, cannas are a much safer choice for gardens where deer are a common problem.