Seasonal Lawn & Garden Planner for NSW: What to Do Each Quarter

Maintaining a thriving lawn and garden in New South Wales takes more than just occasional mowing. With distinct seasonal patterns — from humid summers to cool, wet winters — knowing what to do and when can make all the difference. This NSW seasonal garden planner gives you a clear, practical lawn calendar to keep your outdoor spaces green, healthy, and looking their best year-round.
Summer (December – February): Growth & Water Management
Summer in NSW is all about heat and humidity, which means your garden’s focus shifts to hydration and pest control.
Lawn care checklist:
- Mowing: Mow weekly, but keep grass slightly longer (around 5–6cm) to shade the soil and reduce evaporation.
- Fertilising: Apply a slow-release nitrogen fertiliser early in summer to strengthen your turf.
- Irrigation: Water deeply two to three times a week in the early morning to encourage strong roots.
- Pest control: Watch for lawn grubs, armyworms, and fungal issues like dollar spot. Apply eco-friendly treatments if needed.
Garden tasks:
- Prune summer-flowering plants after blooming to encourage new growth.
- Mulch garden beds to lock in soil moisture and suppress weeds.
- Inspect irrigation systems for leaks or clogs — efficient watering is essential during heatwaves.
Autumn (March – May): Repair & Prepare
As temperatures cool, your lawn recovers from summer stress — making this a great time for rejuvenation.
Lawn care checklist:
- Fertilising: Apply an autumn fertiliser to boost root strength before winter dormancy.
- Mowing: Gradually reduce mowing frequency as growth slows.
- Aeration: Aerate compacted areas to improve drainage and nutrient absorption.
- Overseeding: Reseed thin or bare patches to restore density before winter.
Garden tasks:
- Trim hedges and shape shrubs before cold weather sets in.
- Collect fallen leaves for compost or mulch.
- Begin planting winter vegetables and flowering annuals.
Tip: Autumn is the perfect time to call in Brooksie’s Lawn Maintenance for professional aeration and fertilising — ensuring your lawn stays resilient through winter.
Winter (June – August): Maintenance & Protection
While growth slows in winter, maintenance remains key to preventing long-term issues.
Lawn care checklist:
- Mowing: Mow lightly every 3–4 weeks to keep the lawn tidy.
- Weed control: Apply a selective herbicide to manage broadleaf weeds.
- Fertilising: Use a winter blend high in potassium for disease resistance.
- Pest watch: Keep an eye out for fungal growth due to damp soil.
Garden tasks:
- Prune dormant trees and shrubs.
- Clean and sharpen garden tools.
- Plan your spring planting schedule — this is the calm before the growth surge.
Spring (September – November): Renewal & Growth
Spring is the season of renewal, when your garden and lawn burst back to life.
Lawn care checklist:
- Fertilising: Apply a balanced, slow-release fertiliser in early spring to fuel rapid growth.
- Mowing: Increase mowing frequency as growth picks up — always follow the one-third rule.
- Aeration & dethatching: Remove thatch buildup to allow water and nutrients to penetrate.
- Pest control: Treat any signs of curl grubs or aphids before they spread.
Garden tasks:
- Replant garden beds with summer flowers and vegetables.
- Mulch around trees and plants to retain moisture.
- Check irrigation timers and systems before summer arrives.
Pro tip: A custom seasonal garden plan from Brooksie’s Lawn Maintenance helps you stay on top of every task — from mowing to fertilising — saving time and ensuring the best results.
Create Your Personalised NSW Garden Planner
Every garden is unique, and a well-planned schedule ensures it thrives in all conditions. Whether you manage a residential yard or commercial property, aligning your tasks with the NSW lawn calendar helps you maximise growth, minimise pests, and reduce maintenance costs.
If you’d like a tailored lawn and garden maintenance plan based on your soil type, turf variety, and region — contact us today. Our expert team can handle everything from scheduled mowing to seasonal fertilising and pest management.