Spring brings longer days, warmer soil and a burst of new growth to Sydney gardens. It is also the ideal time to deal with the effects of winter and prepare the garden for the hotter months ahead.
The best spring maintenance is not a frantic clean-up completed in one weekend. It is a considered reset: assessing what the garden needs, supporting healthy new growth and making sure its soil, lawn and irrigation are ready for summer.
Here is where we recommend starting.
1. Begin with a garden health check
Walk through the garden before reaching for the tools. Look for:
- waterlogged or compacted areas
- broken, dead or damaged branches
- plants that have outgrown paths, windows or other plants
- early signs of pests or disease
- weeds that are about to flower or set seed
- bare lawn areas and worn edges
- leaking irrigation, blocked drippers or uneven watering
- mulch that has broken down or moved away from the soil
This first inspection helps separate what genuinely needs attention from work that can wait. It is particularly important after a wet winter, when drainage problems and stressed plants can become more obvious.
2. Prune selectively, not automatically
Spring is a good time to remove dead or damaged growth, lightly shape many hedges and clear spent foliage from ornamental grasses and strappy plants. Selective pruning improves airflow, keeps paths usable and allows fresh growth to become the focus.
However, not every plant should be cut back at the same time. Spring-flowering shrubs are generally best pruned after flowering, and some plants respond poorly to hard pruning into old wood. The right approach depends on the species, its flowering cycle and the role it plays in the design.
Spring pruning should support the plant’s natural form and flowering cycle. Kensington project.
3. Weed before spring growth accelerates
Small weeds are much easier to manage before warmer weather sends them into rapid growth. Remove them before they flower and seed, taking care around the roots of established plants.
Once the beds are clear, check whether groundcovers and layered planting can be strengthened to shade exposed soil. A well-planted garden will not eliminate maintenance, but it can reduce open space where weeds establish.
4. Improve the soil and feed where needed
Healthy spring growth begins below ground. Top-dressing garden beds with quality compost or organic matter can improve soil structure, water retention and biological activity without unnecessarily disturbing established roots.
Fertiliser should be matched to the plants and the condition of the soil rather than applied as a one-size-fits-all treatment. Many Australian natives, including grevilleas and banksias, are sensitive to high phosphorus, so use a suitable low-phosphorus product where required. Waverley Council’s guide to starting a native garden is a useful local reference.
Apply fertiliser at the recommended rate and water it in well. More is not better.
5. Refresh the mulch
Mulch is one of the most effective ways to help a garden through warmer weather. It slows evaporation, moderates soil temperature, protects soil structure and helps suppress new weeds.
The right product depends on the planting, the area being mulched and whether an organic or inorganic finish is appropriate. ANL’s practical guide, What Mulch Is Right for My Garden?, explains the main options and where they work best.
Before topping it up, make sure water can still reach the soil beneath. Apply an even layer rather than building a thick barrier, and keep mulch clear of trunks, stems and plant crowns to reduce the risk of rot.
An even mulch layer protects exposed soil while keeping plant stems and crowns clear. Cronulla project.
6. Wake the lawn up carefully
As the lawn returns to active growth, spring maintenance may include:
- mowing and redefining edges
- aerating areas that are genuinely compacted
- removing excessive thatch where it is preventing water penetration
- lightly top-dressing uneven or tired areas
- repairing bare patches
- applying a lawn-specific fertiliser once active growth has begun
Avoid aggressive renovation while the grass is still dormant. Lawn type, shade, drainage and soil condition should guide the timing and treatment. Maintaining a slightly higher mowing height as the weather warms can also help shade the soil and support deeper roots.
A healthy lawn benefits from maintenance timed to its active spring growth. Hunters Hill project.
7. Test and adjust the irrigation system
Do not wait for the first hot week to discover that a dripper is blocked or a garden zone is not receiving enough water. Run each irrigation zone and check:
- filters and drippers are clean
- lines are intact and not leaking
- sprays are reaching plants rather than paving
- garden beds, lawns and pots are programmed as separate zones where possible
- run times suit the soil, planting and season
- the controller and rain sensor are working correctly
Growing Rooms always installs a rain sensor with its irrigation systems. When there has been sufficient rain, the sensor prevents unnecessary watering so the system only runs when irrigation is still required. We use Hunter NODE-BT Bluetooth controllers, which allow clients to monitor and adjust their irrigation from their phone when the season or garden conditions change.
Sydney Water notes that automatic irrigation can be efficient when it is well designed, programmed and maintained, with separate zones and weather-responsive controls. Its garden watering systems guide is a helpful overview.
For more detail, read Is an Irrigation System More Water-Efficient Than Hand Watering?.
8. Plant while conditions are mild
Early spring can be a useful planting window, particularly where the soil is warming but extreme heat has not yet arrived. Choose plants for the actual light, soil, drainage and space available rather than appearance alone.
New planting still needs consistent establishment watering. Grouping plants with similar water needs makes future irrigation more efficient and helps the garden perform as a coherent whole.
9. Check decks, paving and outdoor areas
Sweep and inspect decks, paving, steps, retaining walls and garden edging before the main outdoor-entertaining season. Look for slippery surfaces, failed joints, movement, drainage issues or timber finishes that need attention.
Cleaning or restoration should suit the material. Overly aggressive pressure cleaning can damage timber, stone and grout, so use the appropriate method or bring in a professional where required.
10. Prepare now for summer
Spring maintenance should make the garden more resilient, not simply tidier. Prioritise healthy soil, appropriate mulch, efficient irrigation and plants suited to their position. These measures help reduce heat stress and make better use of water when conditions become hotter and drier.
You can also read our guide to preparing your garden for an El Niño summer.
A simple spring checklist
- Inspect drainage, plant health and irrigation
- Remove weeds before they seed
- Prune according to plant type and flowering time
- Add compost and plant-appropriate fertiliser where needed
- Refresh mulch without burying stems or trunks
- Renovate lawns only after active growth begins
- Test every irrigation zone and the rain sensor
- Complete new planting before the hottest weather
- Inspect decks, paving and outdoor entertaining areas
Keep your garden performing at its best
Every garden responds differently to the changing season. Growing Rooms provides tailored, ongoing garden maintenance for prestige homes across Sydney, including pruning, lawn care, soil improvement, mulching, irrigation checks, planting, pest and disease management, and deck or paving restoration.
Contact the Growing Rooms team to discuss a seasonal visit or an ongoing maintenance program for your garden.