
GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on November 11, 2020
You need to dig them up. They are not hardy in your zone 5. I don't know why they stayed green so long. They should have died back. Were they planted late in spring?
https://www.gardeningknowhow.com/ornamental/bulbs/gladiola/storing-gladiola-corms.htm
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