Scientific NameJuncus effusus
This evergreen perennial, flowers from June to September. This plant grows in dense clumps, up to 4 ft in height.
Instead of traditional leaves, Soft Rush has upright cylindrical stalks that are hollow with a white pithy core.
Soft rush propagates both by seed, and by division.
Flower Seed Head
Each olive green flower sprouts from the sides of the stem, with as many as 30 to 100 flowers per branch. Each flower has 3 petals and 3 sepals. Above the flower is an involucral bract, which is a continuation of the stem. This is usually brown or grayish in color when the plant matures.
Seeds are found in smooth, brown, ovoid capsules that grow up to 1/16 of an inch in length. The straw colored seeds are 1/40 inch in diameter.
This plant prefers moist soil, particularly near ponds and swamps. It can grow in full sunlight, but is normally found in shady areas. Soft Rush can grow both in fresh, or salt waters.
Leaf Hair on Upper Surface
Mature Leaf Width
less than 5 mm