I have 10 containers of the 150th celebration tulip in my garage. I live in zone 4-5. The leaves on tulips are now 4-5 inches high. When should I move these containers from garage to outdoors?
Containers of Tulips
Certified GKH Gardening Expert
If they are not getting light in the garage, you should probably move the tulips outside right away. If this is earlier than tulips usually come up in your region, you might want to protect them with some mulch, as described in this article:
You can also cover them with an upside-down bucket when you know a cold night is coming.