The successful overwintering of canna lilies relies on proper bulb (rhizome) storage. This process involves preparing the rhizomes after the first frost, carefully removing excess soil, and providing a cool, dark, and dry environment to prevent rot and premature sprouting. Failure to adequately store these rhizomes can result in loss of the plant.
The primary benefit of correct rhizome preservation is ensuring the plant’s survival and subsequent vibrant growth in the following season. This practice, rooted in horticultural understanding, allows gardeners to enjoy these tropical-looking plants year after year, even in climates where they are not naturally hardy. Historically, successful overwintering techniques have been essential for cultivating non-native plant species in diverse environments.