Start here
Healthy vs Unhealthy Tree: How to Read the Warning Signs
Learn what a healthy tree looks like, which warning signs point to a struggling one, and how to check canopy, trunk, bark and roots before calling an arborist.
Roots, Disease & Health
Tree Health Diagnosis
4 guides, starting with Healthy vs Unhealthy Tree: How to Read the Warning Signs.
How to Tell If a Tree Is Dead or Dying
Use the scratch test, snap test and a few simple checks to tell whether a tree is dead, dying, or only dormant, plus what to do if you think it is gone.
What an Overwatered Tree Looks Like and How to Save It
Overwatered trees often look like drought-stressed ones. Learn the leaf, trunk and soil signs, how to check moisture, and how to help a tree recover.
Why Is Bark Falling Off Your Tree?
Bark coming off a tree can be normal shedding or a sign of damage, drought or disease. Learn how to tell the difference and what to do next.
Related topics