Can be overwintered outdoors, even in zone 6 PROVIDED that corms are planted deeply and there is EXCELLENT winter drainage.
Likes to be planted deeply.
As Calla lily is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.These estimates for how long Calla lily takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.
Average 11 days | Min 6 days | Max 99 days (2)
Average days | Min days | Max days (0)
Average days | Min days | Max days (0)
Calla Lily, Dwarf calla lily, Calla, Arum lily, garden calla
Misspellings: Call Lily, Lily Cala, Cala Lily
1 plants.ces.ncsu/plants/all/zandestechia-ssp/