Native sarsaparilla (happy wanderer)
Hardenbergia violacea
A tough, purple-flowering pea vine that fixes nitrogen and covers fences fast.
Hardiness: zones 9 to 11
Light: full sun to part shade
Size: about 10 ft tall, 3 ft wide
From: Eastern and southern Australia
Drought-hardy once established
Here: Too tender to overwinter outdoors on the Lake Erie shore (zone 6b to 7a): grow it in a pot and bring it in, or treat it as an annual.
Good for: fixing nitrogen in the soil, pollinators, wildlife.
Native to: Australia. Hardy in zones 9 to 11.
The story
Hardenbergia flowers in the last weeks of the Australian winter, in a spill of purple pea flowers. Early settlers brewed its roots as a stand-in for sarsaparilla, which is where the odd common name comes from.
Planting
Sun or part shade and well-drained soil. Give it a fence or let it sprawl as groundcover.
Growing
Prune after flowering to keep it dense. It is drought-hardy once settled.
Harvest and use
Late-winter nectar for native bees, nitrogen for the soil, and fast cover for bare wire.
What to watch for
Heavy frost. Waterlogged ground.
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General guidance, not professional advice. Conditions vary by yard and year; for local specifics ask your county extension office. Never eat a wild plant you cannot identify with certainty. Traditional uses are shared as history, not medical advice. © 2026 Sean Priest · Irie Orchard. Terms & credits · Privacy · Home