The best fast growing hedge plants for Sydney are lilly pilly, murraya, viburnum, photinia and clumping bamboo, planted in spring or autumn and clipped as they grow. The biggest mistake is choosing on speed alone, because a plant that grows too tall too fast becomes a pruning chore.
This guide compares fast growing hedge plants in Australia by height, upkeep and climate, then shows how to plant, trim and budget for a privacy screen.
Key points
- Plant hedges in autumn or spring in Sydney, when soil is warm enough for roots and summer heat or winter frost is not close.
- You need a sturdy hedge trimmer or shears, mulch, slow-release fertiliser and a hose with an instant on-off trigger nozzle.
- Check your council’s tree and hedge rules and the NSW noise hours before you trim, and book an arborist for tall or powerline-adjacent work.
- A professional trims a small hedge for about $69 to $205 per job in Sydney, with $115 typical (October 2026).
When to plant fast growing hedge plants in Sydney
| Season | What to do | Why |
|---|---|---|
| Autumn (March to May) | Plant potted hedging and mulch well | Soil stays warm while air cools, so roots establish before winter |
| Winter (June to August) | Plan the line, prepare soil and order plants | Frost can burn new growth in western suburbs and the Blue Mountains |
| Spring (September to November) | Plant, feed and begin light shaping | Growth is strongest, so plants fill out quickly with regular water |
| Summer (December to February) | Water deeply, mulch and trim lightly | Heat stresses young plants and heavy cutting can scorch fresh foliage |
What you need for a fast growing hedge
| Item | What it is for | Tip |
|---|---|---|
| Potted hedge plants | The screen itself | Buy matching plants from one batch so growth stays even |
| Hedge trimmer or shears | Shaping and trimming | Brands such as Stihl, Husqvarna, Ryobi and Makita suit most gardens |
| Compost and mulch | Soil improvement and moisture | Keep mulch off the stems to prevent rot |
| Slow-release fertiliser | Steady feeding after planting | Use a product from Yates, Scotts or Osmocote exactly as the label directs |
| Hose with trigger nozzle | Deep watering | Hoses must never be left running unattended under Water Wise rules |
| Safety gear | Protection from blades and debris | Wear eye and hearing protection, gloves and closed shoes |
Fast growing hedge plants: step by step
- Mark the hedge line with string and pegs, and keep the plants well away from pipes, drains, boundary fences and powerlines.
- Check your council’s rules and your boundary, because tall hedges can be subject to height limits and neighbour disputes.
- Dig over a strip wider than the pots and mix in compost, breaking up heavy clay so water drains freely.
- Set plants out at the spacing on the label (indicative — check the plant label), with the top of each root ball level with the soil.
- Backfill, firm lightly and water each plant in slowly until the whole root ball is soaked.
- Lay mulch across the strip, keeping it clear of the stems, and water deeply during dry spells before 10 am or after 4 pm.
- Tip-prune young plants after a few weeks to encourage bushy growth from the base rather than a bare, leggy hedge.
- Trim lightly and often through the growing season, keeping the base slightly wider than the top so lower leaves still get light.
Good screening plants compared
Several species make good screening plants, and each trades speed against upkeep. Growth rates below are general and vary with soil, water and sun.
| Plant | Mature height (indicative) | Speed and upkeep | Notes |
|---|---|---|---|
| Lilly pilly (Acmena and Syzygium) | Varies by variety (indicative — check the label) | Fast, moderate trimming | Psyllid can mark new growth in humid summers; see lilly pilly hedge |
| Murraya | Varies by pruning (indicative — check the label) | Fast, frequent clipping | Fragrant flowers; read the murraya hedge guide first |
| Sweet viburnum | Large shrub (indicative — check the label) | Fast, moderate trimming | Dense foliage that suits shade as well as sun |
| Photinia | Large shrub (indicative — check the label) | Fast, moderate trimming | Red new growth; can suffer leaf spot in humid weather |
| Clumping bamboo | Tall, depending on species (indicative — check the label) | Fast, low trimming | Choose clumping types only, because running bamboo spreads aggressively |
| Westringia | Compact (indicative — check the label) | Moderate, low upkeep | Native, hardy and good for coastal gardens |
Best plants for privacy in small Sydney yards
Narrow courtyards and terrace gardens in the Inner West need slim plants that do not swallow the space. Fast growth matters less than a tight, upright habit.
- Try the slim lilly pilly cultivar described in lilly pilly Straight and Narrow for narrow beds along fences.
- Consider Rhaphiolepis Snow Maiden for a neat, flowering hedge that stays compact and suits clipped lines.
- Plant in pots or planter boxes where soil is thin, and check pot size and drainage on the label.
- Choose evergreen plants so the screen works through winter as well as summer.
- Plan how you will reach both sides of the hedge, because a screen against a wall is hard to trim.
Tall privacy plants for larger blocks
Large blocks in the north-west and south-west suburbs can handle taller screens. Check your council’s rules because tall hedges can need approval or cause neighbour disputes.
- Use tall privacy plants such as sweet viburnum, large lilly pillies and clumping bamboo where you have room for wide bases.
- Leave extra distance from pipes and paths, since vigorous roots can lift paving or enter drains.
- Stagger two rows of different plants if you want a thicker, taller screen with less gap risk.
- Keep ladders away from powerlines, and book an arborist for any work above head height.
- Expect trimming time to rise as the hedge grows, so allow for a professional visit once it passes reaching height.
Fast growing low maintenance hedge plants
No hedge is truly maintenance-free, but some need far less clipping than others. Native shrubs often cope better with Sydney’s clay and dry spells.
- Choose westringia, callistemon or native lilly pilly for a looser hedge that needs fewer cuts a year.
- Mulch every spring to reduce weeds and keep roots cool and moist.
- Feed lightly in spring with a native-friendly fertiliser used exactly as the label directs.
- Water deeply but infrequently once established, and always within Water Wise times.
- Keep an eye out for pests such as psyllids, and book a licensed pest controller if they spread.
Quick growing privacy plants in different conditions
- Coastal sites in the Northern Beaches: westringia and coastal banksia handle salt wind better than soft-leaved exotics.
- Heavy clay in western Sydney: build up a raised planting strip so roots do not sit in standing water.
- Part shade: choose sweet viburnum or lilly pilly, which tolerate lower light better than many sun-loving hedges.
- Frosty pockets: pick hardier species and delay planting until after the last frost.
- Weedy options: check with your council before planting geisha girl, as described in our geisha girl plant guide.
Common mistakes with fast growing hedge plants
- Planting too close together, which crowds roots and invites disease once the hedge matures.
- Choosing a plant for speed without checking its mature height, then fighting it for years.
- Cutting into bare wood, because many hedges will not regrow from old stems.
- Making the top wider than the base, which shades the bottom and creates gaps.
- Skipping watering in the first summer, when young roots are shallow and heat stress is common.
- Trimming outside the legal noise hours, which rule out early starts on Sundays and public holidays.
When to call a gardener or licensed specialist
- The hedge has grown beyond safe reach from the ground, or you would need to climb a ladder.
- Branches are close to powerlines, which is work for a qualified arborist.
- The plants are large enough that council approval may be needed to remove or heavily prune them.
- You see leaf curl or heavy insect damage, and want a licensed pest controller to handle it.
- You need weed control in the bed; paid weed spraying requires an EPA ground applicator licence in NSW.
- You would rather hand over the clipping and green waste removal to a local gardener.
Hedge trimming cost in Sydney
| Job | Low | Typical | High |
|---|---|---|---|
| Hedge trimming, small hedge (per job) | $69 | $115 | $205 |
| Gardener hourly rate | $52 | $75 | $115 |
Prices include GST and reflect Sydney metro rates for October 2026. Larger or taller hedges cost more.
FAQ: fast growing hedge plants questions
What are the best fast growing hedge plants in Australia?
Lilly pilly, murraya, sweet viburnum, photinia and clumping bamboo are popular for fast cover in Sydney. Natives such as westringia grow more moderately but need less upkeep. Match the plant to your soil, light and how often you want to trim.
What is the best screening plant for privacy?
It depends on space. Lilly pilly and viburnum suit larger beds, while slim cultivars suit narrow courtyards. The best screening plant is the one that fits your site at mature size, so check the nursery label before you buy.
How long do quick growing privacy plants take to fill in?
Growth depends on the species, soil, sun and watering. Regular tip pruning and deep watering speed up density. Many plants thicken noticeably within a couple of seasons, but follow the nursery label for realistic timing.
Are tall privacy plants allowed on any boundary?
Not always. Councils and the NSW tree dispute rules can limit height or require approval, especially for large trees. Check your local council and talk to your neighbour before planting a tall screen along a boundary.
Getting your hedge trimmed in Sydney
If your screen has grown past comfortable reach, we trim hedges, shape shrubs and remove green waste across Sydney. Book hedge trimming in Sydney and get an itemised quote. For more on choosing species, read our guide to hedges and the lilly pilly resilience guide.
