Mine are outside in the ground without cover, they are doing well and a few nibbles of green ones has confirmed plenty of heat. They all very bushy this year and loaded with fruit despite the cold damp weather. They look to be the healthiest I've ever grown, no leaf curl, no wilt, no necrosis, no BER, no bloom drop, no aphids, no viruses, just big healthy bushy green plants. Only plant that is not doing well is a C. Chinense but no surprises there, it's healthy and leafy, but has only set two fruits so far.