Hedge-Trimming Techniques for WA Native Plants
Achieve clean lines without stressing bottlebrush, grevillea or melaleuca.
Perth’s sandy soils and scorching summers make native hedges resilient—but the wrong cut at the wrong time can still invite die-back, borers or a council infringement. Our horticulturists share species-safe shape techniques so you get sculpted hedges that flower hard, shelter wildlife and survive heatwaves.
Shape techniques without plant stress
10-degree taper
Keep the hedge 10 ° wider at the base than the top. Sun reaches lower foliage, preventing bare “legginess” common in callistemons.
Two-step reduction
For overgrown natives:
- Autumn: Remove ⅓ height, skip fertilizer.
- Spring: Take final ⅓, add slow-release native pellets.
Plants avoid shock and rebound with dense growth.
Feathered finish
Instead of a hard flat top, angle blades slightly upward and “feather” tips. Birds still perch; rain funnels to roots—not footpaths.
Avoid these five rookie mistakes
- Flat-siding with a brushcutter – Strips bark, invites Armillaria root rot.
- Cutting in 40 °C heat – Tissues brown; always prune < 30 °C.
- Fertilising after a heavy prune – Flushes weak water-rich growth; wait four weeks.
- Skipping soil wetting agent – Hydrophobic sands repel post-prune irrigation.
- Blunt blades – Ragged wounds = borer highway; sharpen every 10 linear metres.
Sustainability & council regulations
• City of Perth Verge Rules: Major hedge works require a “Pruning Notification” if > 20 % canopy removed.
• Die-back zones: Disinfect tools with 70 % ethanol moving suburb to suburb.
• Green-waste recycling: Native chips return carbon to sandy soils—request mulch drop-off free.
Explore all eco services on our Gardening Services Perth page.