|Artichoke, 2nd year in zone 4. Three others|
didn't make it through the winter.
In early May we had a couple of weeks of much warmer than seasonal temperatures and it looked like the risk of frost was gone. Being the eager gardener and not always wise and patient, I went ahead and planted all my seedlings on the Victoria Day weekend. All was good for a few days and then wham one cold night was predicted.