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Seaside arrowgrass

Triglochin maritima

Also called Sea arrowgrass, Arrow Grass, Seaside Arrow Grass, Shore Arrowgrass, Sea Arrow Grass, Common Bog Arrowgrass, Arrowgrass

Seaside arrowgrass
Photo: Elke Freese, CC BY 2.5

Seaside arrowgrass is a small perennial (sometimes annual) marsh and coastal plant with fleshy leaves and greenish flowers on a long spike. It thrives in wet, saline or boggy soils and is grown mainly in wet or coastal gardens.

Family
Juncaginaceae (Juncagin family)
Grows as
Bulb
Light
Full sun, Part shade
Water
Keep soil consistently wet or boggy; it can grow in shallow standing water.
Soil
Wet, saline or sandy-silt soil; tolerates brackish conditions.
Temperature
Hardy to cold winters; tolerates frost, does best in cool temperate climates.
How easy
Easy
Safety
Mildly toxic: The plant can produce cyanide, mainly when stressed by drought or heavy grazing; green leaves are considered more toxic than dried material.
Native range
Temp. Northern Hemisphere, S. South America
Climate
temperate

About

Triglochin maritima is a species of flowering plant in the arrowgrass family Juncaginaceae. It is found in brackish marshes, freshwater marshes, wet sandy beaches, fens, damp grassland and bogs. It has a circumboreal distribution, occurring throughout the northern Northern Hemisphere. In the British Isles it is common on the coast, but very rare inland.

Other Triglochin plants

Triglochin scilloides · Triglochin minutissima · Arrowgrass

Text excerpted from the Wikipedia article Triglochin maritima 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.

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