I tried an experiment I read about last year. Planting glads deep and covering them with straw to overwinter.
I planted the glads about 6-8 inches deep. I had a really nice harvest of them. When the stems died I cut them off, and put straw on top of them. Straw comes in a bale, and it separates into sheets. I used a whole sheets to lay down on top of them, not fluffing it up, or anything. In the spring when it warmed up I took the sheet of straw off the top, and all the glads came back.
I understand the glads will only be full and nice for about 3 years, and then you need to replant, but much easier than replanting every year.
Glads do not normally come back here, and we had a definite z5 year here, with extended temps between 0 and -10.
Here's my first one this year.
