If decorative lights are wrapped around trees for seasonal decor, take them down before the next growing season. Q: I have a Hoya whose leaves have turned quite red.

Bilotto said you can get evergreen floral picks and wrap them around the artificial tree's branches to fill in some of the empty spots. "It's like giving your tree hair extensions," he said.

How to decorate trees with Christmas lights Palo Verde and mesquite trees are common in Arizona, and they are also great to wrap with lights thanks to their long branches.