Schoenoplectus lacustris

Schoenoplectus lacustris (15/08/2015, Kew Gardens, London)

Position: Full sun to light shade

Flowering period: Summer

Soil: Poorly drained/ wet (to 30cm deep)

Eventual Height: 3m

Eventual Spread: 1m

Hardiness: 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a

Family: Cyperaceae

Schoenoplectus lacustris Flower (15/08/2015, Kew Gardens, London)

Schoenoplectus lacustris is a tufted evergreen, grass like water perennial. Its grey green leaves are stems which are round in cross section and up to 1.5cm in diameter. Its upper stem may produce a short blade. Its small brown flowers appear at the ends of the leaf stems as a terminal head of several branches  consisting of many compact clusters of egg shaped spikelets. Its roots are rhizomes from which this plant spreads.

Schoenoplectus lacustris Leaf (15/08/2015, Kew Gardens, London)

Schoenoplectus lacustris, commonly known as Common Club-Rush or Bullrush, is native to most temperate regions of the northern hemisphere including the UK. In its natural habitat it occurs in slow moving rivers, bogs, shallow pond margins and it occurs in stands.

Schoenoplectus lacustris Flower Bud (05/05/2012, Kew, London)

The etymological root of the binomial name Schoenoplectus is derived from the Greek schoinos meaning ‘rush’ and plektos meaning ‘twisted’. Lacustris is derived from the Latin lacus meaning ‘lake’.

The landscape architect may find Schoenoplectus lacustris useful for UK native wetland planting schemes, at the edges of lakes, ponds or slow moving rivers.

Ecologically, Schoenoplectus lacustris is valuable along fresh water shorelines helping to buffer against water erosion.

Schoenoplectus lacustris prefers wet, poorly drained, fertile soils. It tolerates most pH of soil. It will tolerate a water depth to 30cm.

Schoenoplectus lacustris requires little maintenance.



Landscape Architecture

Typha latifolia

Typha latifolia (13/09/2011, Southend On Sea)

Position: Full sun    

Flowering period: Summer

Soil: Silt, up to 1m water depth

Eventual Height: 2.5m

Eventual Spread: 0.6m

Hardiness: 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b

Family: Typhaceae

Typha latifolia is a vigorous deciduous, perennial obligate wetland species. It has upright, strap shaped leaves which are 2-4-cm in width and 1.5-3m high.  It is a marginal water plant, growing in silt deposits in a depth of water of 0.75 – 1m, it prefers fresh water but will grow in slightly brackish marshes. The stems of the plant bear long flower spikes with an upper male staminate section and a lower female pistillate section, the flowers being monoecious.  The flowers are borne in late summer and come in the form of dark, creamy, terminal flower heads followed by  dark brown sausage shaped seed heads. The foliage is mid green in spring, summer and autumn, with brown fruits being produced during the autumn months.  T.latifolia regenerates vegetatively through rhizome sprouts and sexually through seed germination. This plant prefers a sunny a site with partial shade, it will not survive in a shady location.

Typha latifolia, commonly known as the Bulrush, Common Bulrush, Broadleaf Cattail, Common Cattail, Great Reedmace, Cooper’s Reed and Soft Reed, is native to North and South America, Eurasia (including the UK) Africa, New Zealand, Australia, India. In Australia and Hawaii it is considered an invasive weed. It has been found in a number of climates from humid to subtropical and is able to survive at elevations from sea level up to 2,300 meters. Typha latifolia is often found at the edge of bodies of water mainly ponds, marshes and permanently wet drainage ditches. The mature flower stalks are said to resemble the tail of a cat hence the common name Cattail. Surprisingly, once established, the rhizomes of this plant will tolerate prolonged period of drought, two years have been recorded in one instance. Typha latifolia is entirely edible, the Native Americans ate the newly emerged sprouts (as a green vegetable) in spring, the flower stalks (boiled) and the pollen (added to other flours).

The etymological root of the binomial name Typha is derived from the Greek name for this plant, ‘Tufh’. Latifolia is derived from the Latin Latus meaning ‘broad’ and folius meaning ‘leaf’ (broad leaf). 

Typha latifolia flower (13/09/2011, Southend On Sea)

The landscape architect may find Typha latifolia useful in a native wetland planting scheme. It is suitable alongside a water body such as a pond, artificial lake and slow moving rivers. It is also suitable for use as part of a Sustainable Urban Drainage Systems (SUDS) in the form of drainage ditches (swales), attenuation ponds and other suitable water features. It may also be used to treat polluted water.

Ecologically Typha latifolia provides food and important nesting sites for waterfowl, marsh birds and small mammals.

Typha latifolia prefers fertile muddy soils and can survive in acidic to calcareous soil pH. It prefers waterlogged soils, preferably to a depth of 0.75m to 1m.

Typha latifolia require little maintenance. If a tidy appearance is required the removal of dead foliage and old flower stems may be done in spring. Due to the vigorous nature of this plant it may be necessary to have a management program in place to keep stands of this plant in check, removing unwanted plants either mechanically or by the use of herbicide (when the plant is in flower). If appropriate, this species may be managed with fire.