perennial

Garden Canna

Canna hybrida

The Story

Plant Bio

Canna × generalis, commonly known as garden canna, is a robust, rhizomatous perennial forming erect, clump-forming stems wrapped in large, paddle-shaped leaves. The terminal, asymmetrical flowers feature showy, petaloid staminodes in shades of red, orange, yellow, and pink, blooming continuously from midsummer until frost.

These garden hybrids represent a complex genetic mix bred for compact stature, diverse flower colors, and dramatic foliage that ranges from deep bronze-purple to cream-and-pink variegation. Their rapid, tropical growth makes them highly effective as structural accents in temperate borders or large containers.

Uses & Benefits:

Provides dramatic, architectural foliage and vibrant, tropical-looking flowers that bloom continuously over a long summer season.

Tolerates wet, boggy soils where other perennials rot, making it useful for rain gardens and pond margins.

The tubular flowers serve as an excellent nectar source for hummingbirds, bees, and butterflies.

Essentials

At a Glance

Plant Type

Perennial

Height

94"

Width

71"

Light

Full Sun, Partial Sun

Zones

7, 8, 9, 10

Water

High

Humidity

High

Lifespan

Perennial

Native To

South and Central America

Toxicity

Non-toxic

Bloom period

Summer – Early fall

In flower about 4 months of the year

Planting

How to Grow

Select a planting site in full sun with fertile, organic-rich soil that retains moisture well.
Plant rhizomes in spring after the danger of frost has passed, burying them 3 to 4 inches deep with the growing points or 'eyes' facing upward.
Water thoroughly after planting and maintain consistent soil moisture throughout the active growing season to support the rapid development of large leaves.
Apply a balanced, high-nitrogen or high-potash fertilizer monthly from late spring through mid-summer to fuel heavy foliage and flower production.

Pro Tip

Lift the rhizomes immediately after the first autumn frost blackens the foliage in zones below USDA 7; storing them in dry peat moss or vermiculite prevents winter rot.

Keep It Thriving

Care Guide

Do

Deadhead spent flowers weekly by cutting the stem down to the next node to encourage continuous blooming.
Divide overcrowded rhizome clumps every 3 to 4 years in spring to maintain vigor and flower size.
Keep the soil consistently moist, especially during hot summer spells, to prevent leaf scorching.

Don't

Do not prune off healthy green leaves mid-season, as they are essential for photosynthesizing and feeding the underground rhizome.
Do not allow the rhizomes to sit in stagnant, freezing-wet soil over winter, which causes rapid rot.
Do not plant in deep shade, which leads to weak, leggy stems and a complete failure to bloom.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Fertilize
Lift Store
Plant

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Bog gardensWater featuresMixed bordersLarge containersTropical-themed plantings

Companion Plants

Hibiscus coccineus Colocasia esculenta Salvia guaranitica Dahlia

Multiply

Propagation Methods

Good to Know

Common Questions

Garden Canna questions

What zones can Garden Canna grow in?

Garden Canna is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Garden Canna deer resistant?

Not reliably. Deer may browse Garden Canna, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Garden Canna bloom?

Garden Canna typically blooms in summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Garden Canna need full sun?

Garden Canna does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.