Sparganium Erectum

Description

Sparganium erectum, commonly known as Branched Bur-reed or Upright Bur-reed, is a robust aquatic or marginal perennial found in wetlands, ponds, and along water edges. This striking plant produces tall, upright stems with strap-like green leaves that create architectural interest in aquatic landscapes. From early to late summer, it forms spherical green flowers and seed heads, which turn brown as they mature, adding texture and seasonal appeal. Ideal for naturalizing in wet areas, Sparganium erectum thrives in moist to wet soils and can be grown submerged in shallow water or along pond margins. It plays a vital role in water gardens by improving water quality and providing habitat for aquatic wildlife, including insects and birds. Its vigorous growth habit makes it an excellent choice for erosion control and ecological planting schemes.

Sowing Advice

Sow seeds in spring in shallow trays filled with aquatic or boggy soil, lightly covering them with soil. Keep the tray consistently wet and place it in a bright, sheltered location. Germination may take several weeks to months. Transplant seedlings into their permanent location once they are well-established, ensuring a water depth of 0–10 cm (0–4 inches) for best growth.

Key Facts