Garden Edging Options in Adelaide — Materials, Cost, Lifespan

Garden edging is one of those landscape elements that’s invisible when right and obvious when wrong. Cheap edging fails in 2-5 years; the right edging holds shape for 20-40. Worth getting right.

Here’s what’s available in Adelaide and what each costs.

Quick comparison

Material	Per linear metre installed	Lifespan	Look
Concrete kerb (poured)	$55–$95	30+ years	Modern, formal
Brick paver edging	$50–$85	30+ years	Classical, heritage
Stone edging (natural)	$80–$160	50+ years	Premium, natural
Steel (corten)	$60–$120	25+ years	Modern, industrial
Timber sleeper	$25–$55	8-15 years	Casual, country
Plastic (link-style)	$15–$35	5-10 years	Utility, hidden
Aluminium	$50–$90	20+ years	Modern, slim

Concrete kerb (poured-in-place)

The volume material in Adelaide. Poured against a form board, finished with a trowel. Available in plain grey, exposed aggregate, or coloured.

Strengths

• Long lasting (30+ years)
• Robust against mower wheels
• Clean line
• Available in many finishes (smooth, exposed aggregate, charcoal-coloured)

Weaknesses

• Permanent — hard to change later
• Cracks if poured on a moving subgrade
• Industrial aesthetic in some settings

A typical 30m of concrete kerb in Adelaide: $1,800-$2,800 installed.

Brick paver edging

Standard or special-shaped pavers laid on edge, mortared in or sand-set. Suits heritage homes and traditional gardens.

Strengths

• Easy to repair (replace individual bricks)
• Suits brick architecture
• Range of colours and shapes available

Weaknesses

• Requires more labour than concrete kerb
• Can shift over time if poorly installed
• Joints attract weeds

Steel edging (corten or galvanised)

Steel strips driven into the ground, often with a rolled top edge for safety. Corten (rusty patina) is the modern aesthetic; powder-coated steel is more refined.

Strengths

• Slim profile (almost invisible at ground level)
• Clean modern look
• Strong against weeds and grass invasion
• Curves easily

Weaknesses

• Sharp edges if poorly finished
• Can warp in extreme heat events
• More expensive than concrete

Timber sleeper edging

H4-treated pine or hardwood sleepers as garden bed edges. Casual, country-look.

Strengths

• Cheapest substantive option
• Rustic aesthetic
• Easy to install

Weaknesses

• Treated pine: 12-15 years before replacement
• Warps over time
• Termite vulnerability

Stone edging (natural)

Block stone (sandstone, limestone, basalt) laid as garden bed boundaries. Premium aesthetic.

Strengths

• 50+ year lifespan
• Beautiful, ages well
• Heat-resistant
• Suits heritage and Mediterranean gardens

Weaknesses

• Most expensive option
• Heavy — requires machinery for placement
• Limited installer pool

Aluminium edging

Slim aluminium strips, often 5-8cm tall. Modern, low-profile.

Strengths

• Very slim profile
• Doesn’t rust
• Easy to install
• Lightweight

Weaknesses

• Less robust than steel
• Aesthetic limited to modern designs
• Requires staking

Plastic / poly edging

Cheap link-segment edging from hardware stores. Utility option.

Strengths

• Cheap
• DIY-friendly
• Hidden when installed correctly

Weaknesses

• 5-10 year lifespan
• Looks cheap if visible
• Can pop out

What edging actually does

• Defines bed lines — keeps garden looking tended
• Contains mulch — prevents mulch washing into lawn
• Stops grass invasion — creeping species (kikuyu, couch) walk into beds without edging
• Prevents lawn-edging maintenance — saves the weekly hand-trim
• Provides mowing surface — flat-top edges let the mower wheel run on them

The single biggest functional benefit: cuts garden maintenance time by 50% by eliminating constant edge-trimming.

Where to skimp / where to spend

Hidden bed edges (between mulched beds)

Cheap aluminium or even plastic — no one sees it.

Lawn-to-garden bed edges

Concrete kerb or steel. The edge gets mower wheels on it weekly; needs to be robust.

Driveway-to-lawn edges

Concrete kerb or stone. High-visibility, high-stress, needs durability.

Decorative feature edges

Stone, brick, or steel. The edge is part of the design.

Common mistakes

• No edge at all. Mulch escapes; grass invades; maintenance climbs.
• Wrong material for the use. Plastic edge against a lawn dies in 3 years.
• Wrong height. Edges higher than the lawn surface make mowing awkward; flush is best.
• Skipping the curve. Right-angle bed corners are harder to mow than gentle curves.

Get a free quote

Request a free quote — Adelaide landscapers will spec edging suited to your beds, lawn variety, and aesthetic.