A practical tree care guide for Melbourne properties

Most useful tree care is not dramatic. It is protecting roots, watering according to soil and weather, keeping mulch away from the trunk, making small structural decisions early and noticing change before a problem becomes urgent.

This guide is general. Species, age, soil, site history and symptoms can change the appropriate response.

Six habits that help

1. Look at the whole tree and site regularly.

2. Water deeply enough to wet the active root zone, then let soil conditions guide the next watering.

3. Mulch the root area broadly, not against the trunk.

4. Prevent mower, line-trimmer and vehicle damage.

5. Keep excavation, fill and compaction away from roots.

6. Prune for a clear reason for the work, not because the calendar says every tree needs an annual cut.

A seasonal observation calendar

Summer

Watch new and recently planted trees for drying root balls, scorched foliage and irrigation failure. Check after heat, wind and storms for newly broken or hanging branches. Do not make large, non-urgent pruning decisions during extreme stress without tree-specific advice.

Autumn

Record unusual early leaf loss, canopy thinning or fungal fruiting bodies. Clear drainage problems without trenching through major roots. Plan non-urgent work with species and objective in mind rather than assuming all trees should be pruned in winter.

Winter

Deciduous structure can be easier to see, but leaflessness is not itself decline. Check branch unions, past topping wounds and clearance. Some species and flowering objectives call for different timing.

Spring

Look for expected bud break and compare similar parts of the crown. Sudden failure to leaf, localised dieback, epicormic shoots or changed leaf size can warrant investigation. Avoid damaging roots during garden renovation and new irrigation work.

Watering established trees

There is no universal “minutes per week” rule. Check moisture below the surface and consider rainfall, soil texture, root area, tree size, recent planting and heat.

Slow application over a broad area is generally more useful than a small daily splash at the trunk. Newly planted trees need particular attention to the original root ball, which can dry differently from surrounding soil.

Persistent saturation can also harm roots. If water stands for long periods or foliage declines despite wet soil, investigate drainage rather than adding more water.

Mulch without burying the trunk

Organic mulch can moderate soil temperature, reduce evaporation and protect soil from compaction. Apply it over a useful area, keep it shallow enough for the site and leave the trunk flare clear.

A mulch volcano against the trunk holds moisture where it is not wanted, hides defects and can encourage roots to develop in poor positions.

Protect roots during building and landscaping

Tree decline after construction may appear months or years later. Common causes include:

• trenching for utilities or irrigation;

• soil compaction by vehicles and stored materials;

• raising or lowering soil level;

• cutting roots for paving;

• changed drainage;

• repeated traffic beneath the canopy.

Before work near a valuable tree, obtain project-specific arboricultural input early. A fence around the trunk alone may not protect the wider root zone.

Prune with an objective

Young-tree formative pruning can address small problems early. Mature-tree work should identify the relevant branches and outcome. Topping or removing excessive live canopy can create stress and vigorous regrowth.

Ground-level removal of small, reachable dead twigs may be ordinary garden work. Do not climb with a chainsaw, work from a ladder beside a tree, or cut branches that can strike people, property or lines.

Changes worth investigating

Seek appropriate advice when you notice:

• a new or increasing lean with ground movement;

• a fresh crack or split;

• a hanging or recently failed major branch;

• sudden canopy thinning or dieback;

• fungal fruiting bodies at the base or on major unions;

• cavities or decay combined with a relevant target;

• root damage after excavation;

• repeated large branch failure;

• a tree or branch close to powerlines.

These signs do not all mean removal is required. They mean the context and change deserve attention.

For immediate danger call 000. Stay well clear of powerlines and contact the electricity distributor. For non-life-threatening storm assistance call VICSES 132 500.

Common misconceptions

“Fertiliser will fix a sick tree”

Not without understanding the cause. Excess nutrients can be wasteful or harmful. Diagnose the site, water and root issues first.

“More water is always better”

Roots need oxygen as well as water. Saturated soil can be as problematic as drought.

“Mushrooms mean the tree will fall”

Fungal fruiting bodies can be important evidence, but identity, location, extent of decay, tree response and targets all matter.

“Every tree needs annual pruning”

Pruning frequency should follow species, age, objective and condition—not a blanket calendar.

“Removing the canopy stops root problems”

Severe canopy reduction is not a reliable cure for root conflicts and may stress the tree.

If something has changed or you need a defined pruning scope, send photos showing the whole tree and its surroundings. Request a quote or site visit.