Height: 38-45cm (15-18in)
Water depth: up to 7.5cm (3in)
Soil: ordinary or poor
Site: sun or partial shade
Type: marginal Juncus is an enormous genus found growing wild in northern-Remispnere, temperate-climate bogs and moorlands hut most are weedy and invasive. A tew varieties, however, merit waterside planting.
Juncus effusus is rarely grown, but the form ‘Spiralis’ is popular. It has a sprawling habit and dark green, cylindrical, which vary from tight curls to corkscrews and spirals. Insignificant brown appear in early to mid summer. The plants reach 38-45cm (15-1 8 in) high.
Plant on the margins of ain mid to late spring, in sun or light shade. Any soil, even the poorest, is suitable and you can plant in water up to a depth of 7.5cm (3in).
Remove old foliage from time to time and also cut out any straight leaves from ‘Spiralis’, and plain green leaves from ‘Aureostriatus’.
Propagation: Increase by lifting and dividing clumps in mid to late spring, using a sharp knife to sever tough rootstocks. Replant immediately.
Pests and diseases: Trouble free.