Growth Rate
Fast: Canna lilies are generally fast-growing plants. Under optimal conditions, they can grow quite rapidly, often reaching their full height within a single growing season.
Size
Mature Height: Depending on the variety, Canna lilies typically range in height from 1.5 to 8 feet tall.
Spread: They have a moderate spread, usually forming clumps that can be 1 to 4 feet wide.
Growing Conditions
Sunlight: Prefer full sun for best flowering, though they can tolerate partial shade.
Soil: Well-drained, fertile soil is ideal. They thrive in moist conditions but can tolerate brief periods of drought.
Watering: Regular watering is essential, especially during dry spells, to maintain lush growth and flower production.
Hardiness Zones: Depending on the variety, Canna lilies are generally hardy in USDA zones 7-11. In colder zones, they can be treated as annuals or dug up and stored indoors over winter.