The open plant encyclopedia
Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.
The plants people record most in your country, and ones that grow there wild.
Filter by what you want to do, shape, origin, country, care and safety.
Poa cookii
Cook's tussock grass is a perennial grass forming dense clumps up to about 80 cm tall, native to cold subantarctic islands. Its relevant care points are cold tolerance, wet peaty or sandy soil, and full sun.
Poa cookii, sometimes called Cook's tussock-grass or bluegrass, is a species of tussock grass native to various subantarctic islands. The specific epithet honours British explorer James Cook who visited the Kerguelen Islands in 1776.
The grass is found on the Prince Edward, Crozet, Heard and Kerguelen Islands of the southern Indian Ocean, as well as on Australia's Macquarie Island. On Heard it occupies moist and sandy areas along the shore and on peat flats with the cushion plant Azorella selago. On Macquarie it grows on rocky areas along the coast up to 200 m above sea level, on flats and slopes on wet peat and along the edges of creeks, often flourishing in the nutrient-rich soil near penguin colonies where it has a competitive advantage over the dominant Poa foliosa. On the Prince Edward Islands Poa cookii is eaten by caterpillars of the native moth Embryonopsis halticella. On Macquarie it has been severely affected by rabbit grazing.
Catalina grass · Catalina grass · Short bluegrass · Limestone Cushion Poa · Poa acinaciphylla · Grass Lane Cove River · Alpigene Bluegrass · Alpine bluegrass · Grove bluegrass · Hartz's Bluegrass · Narrow-leaved meadow-grass · Annual Meadow Grass
Text excerpted from the Wikipedia article Poa cookii 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.
