First winter with minis...what did I do wrong?
Hi, all. I put in 4 minis last fall, all in various stages of recovering from spider mites. I believe all were getting established by winter, as all had new growth.
To winter them I put rose collars on and filled them loosely with straw. I pulled off the collars several weeks ago, as I didn't want them sitting in moist straw. All had died back to about an inch tall, but had green leaves popping out. Since then we've had a few snows/temp dips to the high 20's, and the minis are UNHAPPY. Their new leaves keep getting killed, and I think I've lost one. Should I have been out there covering them with straw when the temps dropped, and then uncovering them the next morning?
As a comparison, I bought a few minis this December, and kept them in my dining room under lights...they were put outside in their pots several weeks ago, and have tolerated the 60 degree temp swings without issue.
What did I do wrong with the guys in the ground?