A barrier of trees, shrubs, or structures designed to reduce wind speed and protect plants from wind damage, moisture loss, and cold. Effective windbreaks reduce wind speed for a distance of 10–15 times their height.
Windbreaks are crucial in Australian gardening, particularly in coastal areas, inland regions, and exposed properties where strong winds can damage plants, increase evaporation, and stress vegetables and ornamentals. Natural windbreaks using native trees and shrubs are most effective, as they provide gradual wind reduction rather than creating turbulent eddies like solid fences do.
Choose appropriate species for your climate zone. In tropical areas (zones 10-12), consider native species like Melaleuca or Leptospermum. Temperate zones (7-9) suit native Eucalyptus, Acacia, or deciduous trees like Liquidambar. Mediterranean climates favour Hakea or Banksia species. Multi-layered windbreaks work best: tall trees as the backdrop, mid-height shrubs in the middle, and low plantings in front.
Position windbreaks on the prevailing wind side, typically 1.5 to 3 metres from garden beds, allowing wind to filter through rather than bypass overhead. For immediate protection while trees establish, use shade cloth or polycarbonate panels available at Bunnings. Maintenance is essential—prune regularly to maintain density and remove dead wood. In spring (Sep-Nov), plant new windbreak species, and water consistently through summer (Dec-Feb) to ensure establishment in your local climate zone.