It isn’t always obvious when a tree is unhealthy. Trees can live for decades or even centuries, and changes in their health or structure can develop gradually.
Some signs are easy to spot, such as dead branches or unusual leaf loss, while others may require closer assessment. Knowing what is normal for the species and what could indicate a problem can help you recognise when it may be time to call an arborist.
Signs of a healthy tree:
- Leaves – Healthy foliage should generally have the colour, size and shape expected for the particular tree species and season.
- Bark – Look for bark that appears normal for the species. Peeling or shedding bark is completely normal for some trees, so changes from the tree's usual appearance are more important.
- New growth – New shoots, leaves or seasonal growth can be a positive indication that the tree is actively growing.
- Branches – A healthy tree should generally have a well-formed canopy without significant dead, damaged or failing branches.
Signs Your Tree May Be Unhealthy
- Unusual leaf discolouration, spotting, holes, wilting or premature leaf loss
- Significant changes to the bark, including unexpected peeling, wounds or areas of missing bark
- Dead, dying or broken branches
- A new or increasing lean
- Visible signs of insect activity or infestation
- Fungal growth, particularly around the trunk or root zone
- Cracks, cavities or damaged areas in the trunk or major limbs
- Dieback or noticeably reduced canopy growth
- Changes around the base of the tree, such as exposed roots, lifting soil or decay
When to Ask an Arborist to Inspect Your Tree
If you notice significant dead branches, a new lean, cracks in major limbs, changes around the root zone or other signs that concern you, an arborist can assess the tree more closely and determine whether any work is required.
Treesafe provides professional arborist services across Brisbane Southside and the Gold Coast, including tree assessments, pruning and removal where required. If you’re unsure about the condition of a tree on your property, contact Treesafe for a free quote.