soil temp. for tree roots
Yes, Hardscapes and rock areas definitely effect plant growth and photosynthesis. There are so many variables including the type of tree so there is no simple answer. Here is a link to a great master gardener document: http://www.ext.colostate.edu/mg/gardennotes/143.html Please email directly if you have more questions. email@example.com
Thanks Susan, I had this opinion and disagreement with a contractor in Glenwood Springs who wanted to incorporate the thermal waters to keep a large parking lot snow-free. Thanks for the back up.
Dutch Afman- Arboricultural Consultant
Your Welcome. Glad you are still at it.