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Gahnia decomposita is a tussock-forming sedge-like perennial from southern Western Australia, grown mainly for its clumping habit and grass-like foliage. Give it well-drained soil and sun to part shade, and it will persist in a garden or native planting.
Gahnia decomposita is a tussock-forming perennial in the family Cyperaceae, that is native to southern parts of Western Australia.
Gahnia ancistrophylla · Gahnia aristata · Round sawsedge · Gahnia australis · Gahnia baniensis · Forest sawsedge · Tall Saw Sedge · Heathy Saw Sedge · Gahnia drummondii · Gahnia erythrocarpa · Gahnia filifolia · Chaffy Saw Sedge
Text excerpted from the Wikipedia article Gahnia decomposita by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
