Question...I live at high altitue in Wyoming. Last year I planted 8 different varieties. They grew, but no production. This winter was very mild and dry with very warm temps this last week. I just noticed last week that four of my hops were already out of the ground about an inch. I managed to scrape up some leaves and cover all of my plants. We have frost danger until early June around here. Since these are perenials, will the cold and early starts be ok on them? Or, will it do tem in? I hop to getsome hops this year....What a crazy winter and spring it has been!