I want to crop my glads and leave them over the winter. I was just wondering how short I should cut them?
Glads Left Over the Winter
Certified GKH Gardening Expert
I would hold off on cutting the foliage back. While I know this can be unsightly, the plant depends on its foliage to make and store enough energy for bulb production and blooming next year.
If you are planning on storing the corms, this article will help: https://www.gardeningknowhow.com/ornamental/bulbs/gladiola/storing-gladiola-corms.htm