Auckland Hedge Maintenance Calendar

First main trim

Trim once the spring flush has hardened off (mid-Oct onward). One clean cut sets the shape for the season.

Feed established hedges

Apply a slow-release nitrogen-rich fertiliser at the base. Water in well.

Top up mulch

Refresh bark mulch to 50 mm — keeps moisture in and suppresses kikuyu before summer.

Watch for new pests

Aphids on Photinia, psyllids on Pittosporum, scale on Buxus. Treat early before populations build.

Light tidy trim

A quick tip-prune in late December keeps lines crisp before the holidays without stressing plants.

Deep water young hedges

Any hedge under 2 years needs a deep soak twice a week, even with rain. Surface watering won't reach roots.

Hold off on heavy reduction

Hard cuts in 25°C+ heat scorch internal foliage. Save those for autumn.

Monitor Buxus blight

Humid days = peak risk. Improve airflow with a thinning trim and avoid overhead watering.

Main shaping trim

Best window for a clean structural trim — cooler temps mean tight, even regrowth before winter.

Hard reductions and restoration

Late March – April is the safest time to reduce height or width significantly. Most species recover before frost.

Second feed

A light potassium-leaning feed in March hardens off new growth for winter.

Clear leaf litter

Rake out the hedge base to prevent fungal issues over the wet months.

Structural pruning of bare-stem hedges

Deciduous hedges (e.g. hornbeam) can be cut hard while dormant.

Avoid trimming frost-tender species

Hold off on Ficus tuffi, Lilly Pilly and tender Camellia until spring.

Plan new plantings

Best planting window opens late winter — soil is moist and roots establish before summer stress.

Tool service

Sharpen blades, replace hedge trimmer cords, and clean machinery so you're ready for spring.