What happens if I don’t dig up my canna bulbs?
In colder areas north of zone 8, these tropical beauties won’t survive in the ground during winter. Gardeners in these regions can either treat cannas as annuals, discarding them after the season, or dig up and store the bulbs for replanting in spring. If temperatures are maintained above 10°C (50°F) cannas will remain in growth all winter and flower occasionally.Container-grown canna can be left in their pots overwinter. Simply stop watering as the plants naturally die back, and move the pot somewhere frost free and light, such as a heated greenhouse or sunny conservatory.
What are common canna bulb problems?
Identifying Problems: Rot and Desiccation When canna rhizomes don’t survive the winter, it is usually due to one of two extremes: they were either too wet or too dry. Knowing how to spot these issues helps you clear out the duds so you don’t waste garden space on plants that won’t grow. The most reliable indicator of a healthy canna rhizome is its texture. A living rhizome should feel firm and solid, much like a fresh potato from the grocery store.