Westringia, often known as native rosemary, is one of the true workhorses of the Australian landscape industry. Its tidy form, drought tolerance, and coastal hardiness have made it a go-to for everything from formal hedging to bushland revegetation. But what about its ecological role? While not a standout seed or fruit plant, Westringia still offers some valuable ecological benefits worth considering.
Westringia hybrid ‘WES08’ PBR Trade Name Ozbreed Aussie Box®.
Nectarivorous Birds
Uncommon – Low Attraction
Westringia flowers produce nectar, but their size and structure don’t typically attract large numbers of nectar-feeding birds. You may see the odd honeyeater visit in a mixed planting, but it’s not a strong bird-attracting species in this category. Opt for Callistemon or Grevillea to boost your landscape’s nectarivorous bird attractiveness.
Fruit Eating Birds
No – Not Applicable
Westringia doesn’t produce any kind of fleshy or soft fruit. If you’re aiming to support frugivorous birds like figbirds or olive-backed orioles, you’ll need to pair it with other genera. Two great options are Syzygium and Carpobrotus.
Seed Eating Birds
Unknown – Very Low Interest
The seeds of Westringia are small, dry, and not known to be a food source for granivorous birds. There’s little to suggest that seed-eating birds utilise the plant in a meaningful way. Try adding Chrysocephalum and Cenchrus.
Insectivorous Birds
Yes – Excellent Support
The compact and fine-textured foliage of Westringia provides cover and is well known support small invertebrates such as spiders, beetles, and tiny leaf-feeding insects, while the flowers attract pollinating insects. This in turn attracts small insectivorous birds such as thornbills or wrens in more naturalistic or mixed plantings.
Pollen Feeding Insects
Yes – Frequent Visitors
Native bees and other pollinators are known to visit Westringia flowers for pollen. The flowers are accessible and bloom prolifically throughout much of the year, offering a reliable resource in urban and dryland environments.
Westringia fruticosa ‘WES06’ PBR Trade Name Low Horizon™.
Nectar Feeding Insects
Yes – Especially Small Bees and Flies
Nectar is modest but consistent, and the plant’s long flowering window means it offers extended support for small nectar feeders, including native bees, hoverflies, and butterflies.
Buzz Pollinated Flowers
No – Not Buzz-Pollinated
Like most Lamiaceae family members, Westringia flowers release pollen freely and do not rely on buzz pollination. If you wish to cater to buzz pollinators like teddy bear bees and blue banded bees, add Dianella .
Habitat and Host Potential
Yes – Great Habitat but Unknown Host Potential
There’s little formal documentation on Lepidoptera (butterfly & moth) larval hosts within Westringia, though the dense branching and evergreen habit offer structural refuge for beneficial insects. It’s unlikely to be a primary host for urban butterfly and moth larvae but still contributes microhabitat value in diverse plantings. Native grasses and otherstrappy plants are highly beneficial as host plants.
Final Thoughts for Specifiers
Westringia pulls its weight in pollinator support and habitat structure. Its real ecological strength lies in resilience and seasonal to year-round pollinator provision for small insects, making it a dependable base species in waterwise and coastal plantings requiring a native shrub or hedge. Use it to stabilise and fill space, then layer in more wildlife-attracting biodiverse species to complete the ecological picture.
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