Three-rib arrowgrass is a perennial grass-like marsh plant from the arrowgrass family, native to coastal and wetland habitats across several continents. It needs consistently moist or wet soil, so it suits pond margins, bog gardens or damp ground.
Family
Juncaginaceae (Juncagin family)
Grows as
Grass, Perennial
Light
Full sun, Part shade
Water
Keep the soil constantly moist or standing in shallow water.
Soil
Wet, muddy or heavy loam; tolerates some salinity.
Temperature
Tolerates a wide range, roughly 5–30 °C; protect from hard frost.
How easy
Easy
Native range
DR Congo to S. Africa, Australia, New Zealand, Tubuai (Rapa Iti), Trop. & Subtro
Climate
subtropical
About
Triglochin striata is a species of flowering plant in the family Juncaginaceae. It is native to New Zealand, South America, America, Africa, Australia and Southern Portugal.
It is a perennial with parallel lines on its narrow linear leaves, which gives rise to its common name streaked arrow grass. Other common names include three-rib arrowgrass and three-ribbed arrow-grass.
Where it grows
Triglochin striata's habitat is mainly coastal in damp muddy ground, salt marsh, estuaries, and damp seepages on coastal cliffs, boulder beaches and within damp coastal turf. It is also found inland around lake margins (in marginal turf communities) and in other suitable damp places, and sometimes even in tall forest.
Text excerpted from the Wikipedia article Triglochin striata 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.