Overview

Juncus squarrosus is a clump-forming grass like in the genus Juncus, part of the Juncaceae family, with narrow, cylindrical leaves foliage. Juncus squarrosus grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H4. Suggested uses include pond margins, wetland areas and bog gardens.

About

Juncus squarrosus, called goose corn, heath rush, and mosquito rush, is a species of flowering plant in the family Juncaceae, native to Iceland, Europe, and Morocco, and introduced to Greenland, Svalbard, Tasmania, New Zealand, and the US state of Wisconsin. In the garden it prefers full sun and partial shade and most soil types. In UK gardens it is hardy through an average UK winter (RHS H4). Suggested uses include pond margins, wetland areas and bog gardens. It tolerates soil of any pH, wet, moist conditions and north, south, east and west-facing aspects. Plant out after last frost in fertile, well-drained soil.

Wikipedia contributors, CC BY-SA 4.0Juncus squarrosus

Growing conditions

Best soil and position for Juncus

Sunlight
Full sun, Partial shade
Soil type
Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Wet, Moist
Aspect
North, South, East, West-facing
Exposure
Exposed, Sheltered
UK hardiness
H4

Plant details

Juncus squarrosus size, habit and characteristics

Plant type
Grass Like
Habit
Clump-forming
Foliage
Narrow, Cylindrical leaves
Suggested uses
Pond margins, Wetland areas, Bog gardens

Care notes

Pruning and caring for Juncus squarrosus

Propagation
Division, Seed
Pest resistance
High
Disease resistance
High

Frequently asked questions

Where is the best place to plant Juncus squarrosus?

Juncus squarrosus prefers full sun and partial shade. It suits exposed and sheltered positions.

What soil does Juncus squarrosus need?

Juncus squarrosus is adaptable and grows happily in most soil types, including clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays wet to moist.

Is Juncus squarrosus hardy in the UK?

Juncus squarrosus has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.

How do I propagate Juncus squarrosus?

Division, Seed.

More in the Juncus genus

Browse all Juncus