In the Hills, our unique climate—from sweltering summers to crisp, frost-prone winters—means our trees need specific care at specific times. Use this monthly guide to keep your backyard healthy, safe, and looking its best.
🌸 Spring: Revitalisation & Growth
September – November
- September: Weed & Tidy. Clear away winter debris and weeds from the base of your trees. Weeds compete for the fresh nutrients your trees need for their spring growth spurt.
- October: Fertilise & Mulch. Apply a slow-release fertiliser to boost blooming. Lay 5-10cm of organic mulch around the base (keep it away from the trunk!) to prep for the coming heat.
- November: Establish Watering Schedules. As the weather warms up, start a deep-watering routine for younger trees to ensure they are hydrated before summer hits.
☀️ Summer: Protection & Hydration
December – February
- December: Deep Watering. Focus on infrequent but deep soaking rather than light sprinkles. This encourages roots to grow deeper into the soil where it’s cooler.
- January: Pest Monitoring. Keep an eye out for borers, beetles, and aphids which thrive in the heat. Check for holes in the bark or discoloured leaves.
- February: Heat Stress Check. Look for wilting or “sunscald” on young trees. Consider temporary shade or extra mulch if we hit a severe heatwave.
🍂 Autumn: Preparation & Storm Prep
March – May
- March: Native Pruning. Late summer to early autumn is the ideal time for light pruning of Australian natives like Eucalypts once their peak growth has slowed.
- April: Storm Season Inspection. Check for over-extended limbs or deadwood that could become a hazard during windy autumn storms.
- May: Soil Enrichment. Add compost or organic matter to the soil. This helps the root system strengthen before the tree enters its winter dormant phase.
❄️ Winter: Dormancy & Structure
June – August
- June: Deciduous Pruning. With the leaves gone, it’s the best time to see the “skeleton” of your deciduous trees. Prune for shape and remove any crossing branches.
- July: Structural Restoration. Address any major structural issues or “weight reduction” in large trees while they are dormant to minimise stress on the tree.
- August: Final Dormant Checks. Inspect trunks for cracks or fungal growth. Prepare your spring tools and get ready for the cycle to begin again!
Pro Tip for Hills Residents:
Always remember that The Hills Shire Council has specific regulations regarding tree work. If you’re planning more than a light trim, check your local Tree Preservation Order (TPO) or give us a call.