Botanical name:

Juncus edgariae

Common name(s):

Common rush, Juncus gregifolrus, Wiwi

About:

A robust perennial rush that exhibits a preference for moist to wet soils, but it is also able to tolerate extremes in both wet and dry conditions for short periods. This plant typically grows in tight clumps, characterised by its bright green stems that stand out in its environment. It is an excellent option for wetlands, swamps, or waterways. Given its adaptability, it would make an outstanding choice for regenerating or establishing these crucial ecological areas effectively.

Natural habitat:

Easily the most common indigenous species of NZ ranging in areas form coastal to alpine (1600m) but mainly coastal to montane. Usually in open shrub-land, fringing wetlands, and in seasonally damp sites. Often found invading pasture and in urban areas.

Growing environment:

Sun, Salt, Wetland & Wind tolerant.

Endemic distribution:

New Zealand’s Kermadec, North, South, Stewart and Chatham Islands.

Height: 1.8m

Flowering: 

October - December

Fruiting:

November - April

Uses:

Riparian plantings & Pioneer Plantings.

How to grow:

Easily grown from fresh seed and by the division of whole plants. Can tend to be invasive.

** Seed germinates without pre treatment. 4 weeks cold stratification will help speed this up though