Downtoearthdigs
Answered on April 6, 2018
You are in zone 6b and you should lift your Gladiola corms each year.
Zones 7 and higher can leave them in the ground, but most gardeners actually lift the corms each year.
https://www.gardeningknowhow.com/ornamental/bulbs/gladiola/storing-gladiola-corms.htm
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