Chris, of the five, 1.5 yr. old plants, none of them are losing leaves yet and two of them are in bloom/bud. Those five got moved into the solarium a month ago, when we had a week of wet, cool weather. I have 15 seedlings (four varieties) that germinated a month or so ago and they are still on a heating pad, covered with a dome, and in a greenhouse. They are only 1-2" tall though.