Canna Bulbs Winter Storage
edited November 2020
I have read so many conflicting advice and different ways to overwinter cannas, it's maddening. I planted mine directly in the ground late spring for the first time, and after getting frustrated and confused by youtube tutorials and various web site, I decided to follow a mix of Monty's advice and Hart Cannas' recommendations. I dug them up and kept them in the clump of soil, then bagged them individually in old compost bags and stored them in my unheated shed. I am keeping fingers crossed they won't rot. However, Monty and Hart Cannas both seem to agree that they should not fully dry out.
Keep them in growth. Even not in flower the leaves are fantastic, especially the purple and variegated varieties. Watch out for spider mites.