Signs Your Tree Is Healthy A healthy tree has a long life span and can add a special charm to your landscape. Unhealthy trees, on the other hand, are more susceptible to disease and may harbour pests. How do you know with certainty that your tree is healthy?
Watch for these signs to examine a tree’s health:
Brightly-coloured leaves Look at the natural colour of your tree’s leaves. They may be green in spring and summer, and turn red or brown in fall. Certain trees, for example, have red leaves yearround (e.g. some species of maple and beech). Whichever tree you have, the leaves should have a vivid, bright colour appropriate for the season. Take note if the leaves unexpectedly turn brown or yellow. This could be a sign of disease.