Description

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

Landscape Attributes

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

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

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. Although it's not a true annual, this fast-growing plant can be expected to behave as an annual in our climate if left outdoors over the winter, usually needing replacement the following year. As such, gardeners should take into consideration that it will perform differently than it would in its native habitat.

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. It is even sizeable enough that it can be grown alone in a suitable container. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.