Juncus maritimus (Sea Rush)

What are the benefits of Juncus maritimus?

Juncus maritimus, commonly known as Sea Rush, provides a range of environmental and ecological benefits, especially in coastal and saline habitats. Its primary advantage is its high salt tolerance, which allows it to thrive in estuaries, salt marshes, and coastal wetlands where many other species cannot survive. This makes it invaluable for erosion control, as its dense, fibrous root system stabilises sandy or muddy soils, reducing the risk of coastal erosion. Juncus maritimus also contributes to water filtration by trapping sediments and absorbing excess nutrients from runoff, thereby improving water quality. As a native species in many coastal regions, including parts of New Zealand and Europe, it supports native biodiversity by providing shelter and breeding grounds for invertebrates and birds. Additionally, its tough, upright foliage offers visual texture and structure in naturalistic landscaping, and it requires minimal maintenance, making it ideal for sustainable and low-input plantings.

Juncus maritimus care tips

Plant Juncus maritimus in full sun with moist to wet, free-draining soil. It tolerates salt spray, wind, and periodic inundation, making it ideal for estuaries and coastal wetlands. Water regularly during establishment, but minimal care is required once the plant is settled. Remove dead stems in late winter to maintain a tidy appearance. This hardy, salt-tolerant rush is low-maintenance and excellent for erosion control and sustainable landscaping.

Plant Size and Spacing

Juncus maritimus typically grows 70–100 cm tall and 40–60 cm wide, forming dense, upright clumps. Space plants 50–60 cm apart to allow for mature spread and optimal coverage, especially in coastal restoration, erosion control, or naturalistic landscaping. This spacing enables mature growth and creates an effective ground cover in exposed or saline environments.

Juncus maritimus for sale in NZ

The Plant Company has the best Juncus maritimus plants for sale in NZ. Our production nursery specialises in growing amazing plants, and our logistics team packs them carefully for our customers. The pricing is competitive, and the quality is exceptional. Let us take care of your plant and grass needs and impress you with both our products and services!