Overwintering Calla Lily Tubers in Pots

Calla tubers (rhizomes) can be overwintered in pots, but they need a dormant period.

Recommended Method

1. After frost kills foliage, remove tubers from soil.
2. Air dry several days to prevent mold.
3. Store in a paper bag with sawdust or peat in a cool, dark, dry place (40–50°F).
4. Minimum 2 months dormancy required.
5. Repot in spring after last frost.

Keeping them growing indoors year-round usually weakens the plant. The dormant period strengthens tubers for better blooms next season.