Roots are key to healthy trees, yet they are out of sight and we don’t know much about them. We know topping trees — indiscriminately cutting the ends off branches — is bad, but we don’t know that trenching to install a sprinkler system can be just as bad if not worse. Join us this week to learn the eight things you need to know about tree roots.

Visit http://isatexas.com to learn more about the Texas Tree Conference, academy and school.

Visit http://kdb.org or ctufc.org to learn more about the North Texas Citizen Forester program.

Join #treechat on Twitter each Tuesday from 1 p.m. to 2 p.m. Central Time.