Cardinal Sinn Canna flowers
(Photo courtesy of NetPS Plant Finder)
Height: 8 feet
Spread: 3 feet
Hardiness Zone: (annual)
A stunning garden addition with huge, lance shaped, rich green leaves; large scarlet red flowers top this towering plant; perfect for the back of borders or as an accent; perennial only where roots don't freeze
Cardinal Sinn Canna features bold spikes of scarlet flag-like flowers at the ends of the stems from mid summer to early fall, which emerge from distinctive dark red flower buds. Its attractive large pointy leaves remain green in color throughout the year. The fruit is not ornamentally significant.
Cardinal Sinn 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.
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. It has no significant negative characteristics.
Cardinal Sinn Canna is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
Planting & Growing
Cardinal Sinn Canna will grow to be about 8 feet tall at maturity, with a spread of 3 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.