Question for the experts: my John Hill cutting (that a friend generously sent me) had a horrible trip North. It's companion, Lexa, did fine but John was somehow jostled so much he ended up on his side. Long story short, the stem rotted. But, it was well rooted. Do you think if I leave the roots alone something will grow back? I am trying to see if the one tiny bit of unrotted stem will root but it's iffy. I've never had this exact scenario happen before so thought I'd see what you all think.