Canna is one of severaltropical gardenplants that can be grown in northern climates with specialized care.
However, north of zone 8, the bulbs will die if they spend winter in the ground.
However, they require some monitoring while they’re in storage.
The Spruce / David Beaulieu
What Is a Rhizome?
Rhizomes are plant stems that grow below the ground, not above the ground.
Light surface frost won’t penetrate down to the buried bulbs, but a deep frost can ruin them.
The Spruce / Jason Donnelly
Replant the bulbs in spring after the ground has fully thawed and all danger of frost has passed.
This usually means late spring for most gardeners.
These include elephant ears, blood lilies,caladiums, anddahlias.
The Spruce / Jayme Burrows
you could propagate new plants by cutting away these well-developed offshoots.
A well-ventilated garage or closet makes a good curing location.
Curing toughens up the outer skins to help the bulbs resist rot during storage.
The Spruce / Jason Donnelly
Experienced gardeners are generally happy if 80 percent of their bulbs survive the winter.
To store them in their containers, cut the foliage down to soil level.
A basement or the inner wall of an attached garage can be an ideal location.
The Spruce / Jason Donnelly
Pearce, R.Plant Freezing and Damage.Annals of Botany, vol.
4, 2001, pp.
The Spruce / Jason Donnelly
The Spruce / Jason Donnelly