I had some dogwood cuttings picked off from my new tree. They are about 1-1 1/12 week old. The leaves are yellowing now, only two at the top though. Is this a sign of roots starting? I keep it at a steady 70-77 degrees everyday, maybe a few degrees cooler in the morning. I've used a container to keep it humid. Am I expecting roots to soon? And are dogwood's easy to root? I'm not using root hormone because I want to do this on my first try with no stimulators.