Carex buchananii Berggr.
Carex buchananii is a grass.
Carex buchananii was described by Sven Berggren in 1880. The name is considered as validly published.
Carex buchananii is a species in the genus Carex which contains approximately 2264 to 2485 species and belongs to the family of the Cyperaceae (Sedge Family). The type species of the genus is Carex hirta.
The grasses are comparatively fast-growing and reach heights of 50 to 60 centimetres. The plants reach a width of 30 to 60 centimetres.
Carex buchananii is semi-deciduous. The red, simple leaves are alternate. They are linear with entire margins and parallel venation. The leaves are around 40 to 50 centimetres large and have a glabrous surface.
Flowers and Fruits
Carex buchananii produces spikes of brown flowers in July.
The grasses produce nuts.
Carex buchananii is native to New Zealand.
The grasses prefer a sunny situation on moderately moist soil. The substrate should have a pH between 8 and 10. They tolerate temperatures down to -18Â°C (USDA zone 7).
Classification after Prof. Dr. Sieber
- open areas
Carex buchananii is considered a collector's perennial. The ornamental value lies especially in the attractive winter aspect. The recommended planting distance is 35 centimetres, the grasses are best planted in groups of 5 to 10. Suited for rockeries and for beds and borders, as well as suited as a neighbour to roses, container plant, slope plant and as specimen plant.
Maintenance and Propagation
- Winter protection is advisable.
- Cut back as necessary.
Propagate by division.
Pests and Diseases
Brown, orange or yellowish pustules on shoots and on the leaves lower surfaces are very likely caused by a fungal infestation (rust). Remove affected parts and apply fungicide. Also improve ventilation and reduce humidity.
- Walter Erhardt, Erich GÃ¶tz, Nils BÃ¶deker, Siegmund Seybold: Der groÃe Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
- Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.