Wintzer's Colossal Canna

Canna 'Wintzer's Colossal'

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Wintzer's Colossal Canna (Canna 'Wintzer's Colossal') at Martin's Home & Garden

Wintzer's Colossal Canna flowers

Wintzer's Colossal Canna flowers

(Photo courtesy of NetPS Plant Finder)

Wintzer's Colossal Canna (Canna 'Wintzer's Colossal') at Martin's Home & Garden

Wintzer's Colossal Canna in bloom

Wintzer's Colossal Canna in bloom

(Photo courtesy of NetPS Plant Finder)

Plant Height:  7 feet

Flower Height:  9 feet

Spread:  5 feet

Sunlight:  full sun 

Hardiness Zone:  7b


This very tall variety with huge, colorful leaves is crowned with brilliant coral-red blooms in summer and fall; perfect for the back of borders or as an accent; perennial only where roots don't freeze

Ornamental Features

Wintzer's Colossal Canna features bold spikes of coral-pink flag-like flowers with red overtones and a yellow flare at the ends of the stems from mid summer to mid fall. Its attractive enormous pointy leaves emerge dark red in spring, turning green in color with showy burgundy variegation and tinges of coppery-bronze the rest of the year. The fruit is not ornamentally significant.

Landscape Attributes

Wintzer's Colossal Canna is an herbaceous evergreen perennial with a rigidly upright and towering form. Its wonderfully bold, coarse texture can be very effective in a balanced garden composition.

This plant will require occasional maintenance and upkeep, and is best cleaned up in early spring before it resumes active growth for the season. It is a good choice for attracting hummingbirds to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Spreading

Wintzer's Colossal Canna is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • General Garden Use
  • Container Planting

Planting & Growing

Wintzer's Colossal Canna will grow to be about 7 feet tall at maturity extending to 9 feet tall with the flowers, with a spread of 5 feet. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years.

This plant should only be grown in full sunlight. It requires an evenly moist well-drained soil for optimal growth, but will die in standing water. It is not particular as to soil pH, but grows best in rich soils. It is highly tolerant of urban pollution and will even thrive in inner city environments, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This particular variety is an interspecific hybrid. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Wintzer's Colossal Canna is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. Its large size and upright habit of growth lend it for use as a solitary accent, or in a composition surrounded by smaller plants around the base and those that spill over the edges. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

This plant is not reliably hardy in our region, and certain restrictions may apply; contact the store for more information.

Hardiness Zone Plant Height Minimum Sunlight
Accent  Massing  Garden  Container 
Flowers  Foliage Color  Texture  Plant Form  Attracts Wildlife 
Ornamental Features