Winter Tree Care: What to Check

Winter Tree Care: What to Check Before the Windy Season

Winter can be a useful time to inspect trees, review maintenance needs and identify issues that may become more important during periods of strong wind or wet weather.

For many properties, the priority should not be routine pruning simply because winter has arrived. Instead, tree work should respond to the condition, structure and management needs of each individual tree.

Here are some practical things to consider during the cooler months.

Inspect Trees for Recent Changes

Look for changes such as:

  • newly developing cracks or splits;
  • hanging or partially failed branches;
  • recent branch failure;
  • fungal fruiting bodies around the trunk or root zone;
  • noticeable canopy decline or dieback;
  • root plate movement or fresh soil cracking; and
  • significant damage from storms, vehicles or construction activity.

A visible defect does not automatically mean a tree is unsafe. However, recent changes can justify further assessment, particularly where the tree is close to buildings, roads, pedestrian areas or other frequently occupied spaces.

Does a Tree Need Pruning Before Winter?

Trees do not need to be pruned simply because winter is approaching.

Pruning should have a clear objective. This may include removing defective branches, managing clearance, reducing specific structural loads or addressing another identified issue.

Excessive or unnecessary pruning can remove healthy foliage, alter tree structure and create new management problems.

Where pruning is required, the extent and method should suit the tree species, condition and objective of the work.

Is Winter the Best Time to Prune Trees?

There is no single best pruning season for every tree.

The appropriate timing depends on species, tree condition, climate, flowering or growth cycles and the reason for pruning.

In some deciduous trees, reduced foliage can make branch structure easier to inspect during winter. However, this does not mean all trees benefit from winter pruning.

A qualified arborist can determine whether pruning is necessary and when it should occur.

Check for Dead or Damaged Branches

Dead branches are common in mature trees and do not always require removal.

Their significance depends on their size, condition, height and what lies beneath them.

Deadwood above frequently occupied areas may warrant management. Dead branches in low-use areas may present little risk and can also provide habitat value.

The decision should reflect the location and level of risk rather than applying a blanket rule to all deadwood.

Look for Storm Damage

Winter weather can expose weaknesses in branches and tree structure.

After significant storms, inspect trees for hanging branches, fresh failures, cracks and changes in tree position.

Some defects can be difficult to see from ground level. Where important structural areas cannot be adequately assessed, an arborist may recommend an aerial tree inspection.

Avoid Unnecessary Work Around Tree Roots

Winter garden or landscaping works can also affect trees.

Excavation, trenching, soil compaction and changes in ground level can damage roots. These impacts may affect both tree health and stability.

Before undertaking works close to established trees, consider whether roots may be affected and whether arboricultural advice is required.

Mulching and Watering

Mulch can help moderate soil temperature, retain moisture and improve soil conditions around trees.

Apply mulch over the root zone rather than piling it against the trunk.

Trees may also require watering during dry winter periods, particularly recently planted trees or trees growing in drought-affected soils.

When Should You Call an Arborist?

Consider professional arborist advice if you notice:

  • recent tree movement;
  • significant cracking;
  • large broken or hanging branches;
  • substantial canopy decline;
  • fungal fruiting bodies associated with major roots or the trunk;
  • major root damage; or
  • other recent changes that raise concerns about the tree’s condition.

A qualified arborist can assess whether the feature requires monitoring, pruning, further investigation or no action.

Winter is a good opportunity to review tree condition, but good tree management should respond to the individual tree rather than the season alone.

ArbCert’s consulting arborists provide professional tree assessments, risk advice and arboricultural reporting to support informed tree management decisions.

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