I live in Tennesse and did not dig my canna lilies but covered them with about 4 inches of mulch. It is med May and I cannot see that they are coming up. How long does it take
Certified GKH Gardening Expert
If you do not see any signs of green, you may need to dig up the bulbs and check the health.
Canna Lily are tropicals and are hardy left in the ground in zones 8/9-12.
Depending on where you live, your zones are 5b thru 8a.
Your Canna may not have survived your winter.