I still don't know exactly how cold it got to. 5 degrees was forecast for one night. My Turks Caps...some are showing a bit of life now, others not yet. Mexican Buckeye and native Redbud are okay now. Barbados Cherry...nada yet. Hop Tree...one is barely looking like it's just coming back. The other is...well, doing something bizarre. It has leaves on ends of most regular branches, but at the ground level it has a big flurry of growth around the main trunk, also bigger stems have new growth where none was before.