Origin and Habitat: Gasteria brachyphyllaSN|17303]]SN|17303]] var. bayeri is only known from a few sites such as the hills surrounding Badspoort near Calitzdorp (Little Karoo) and a site near Vanwyksdorp, Western Cape, South Africa.
Habitat and ecology: Succulent Karoo. Gasteria brachyphyllaSN|17303]]SN|17303]] var. bayeri shares its succulent karoo habitat near Vanwyksdorp with guarri shrubs (Euclea undulata) and Aloe striataSN|685]]SN|685]].
Synonyms:
See all synonyms of Gasteria brachyphylla
Description: Gasteria brachyphyllaSN|17303]]SN|17303]] var. bayeri is a distinct variety of Gasteria brachyphyllaSN|17303]]SN|17303]] which is a widespread and morphologically variable taxon. It is a small variant, with leaves only 15-50 mm long, with truncated leaf-tips. The inflorescence is up to 28 cm long and the flowers are about 18 mm diameter, quite large for such a small plant. Flowers appear most heavily in late spring to mid-summer (October to February). Gasteria brachyphyllaSN|17303]]SN|17303]] var. bayeri belongs to a group of very easily cultivated plants, decorative with pleasing appearance of leaves and flower alike.
Leaves: 1.5 - 5 long, 2.2 - 2.8 cm wide, at first erect, becoming patent and recurved, tips often incurved, truncate, epidermis smooth or slightly asperulous
Inflorescence (raceme): 25 - 28 cm long.
Flowers: Perianth to18 mm in diameter.
Subspecies, varieties, forms and cultivars of plants belonging to the Gasteria brachyphylla group
Gasteria brachyphylla (Salm-Dyck) van Jaarsv.: (var. brachyphylla) has leaves 90–230 mm long, 30–80 mm wide with a pointed leaf tip. Distribution: Little Karoo south of the Swartberg and northwards to Willowmore.- Gasteria brachyphylla var. bayeri van Jaarsv.: smaller, leaves only 15-50 mm long, with truncated leaf-ends. Inflorescence to 28 cm long and the flowers (perianth 18 mm) large for such a small plant. Distribution: Little Karoo, near Ladismith and Calitzdorp.
- Gasteria nigricans var. marmorata f. variegata: has fat coriaceus leaves striped with ridged surface of gray-silver and ivory.
Bibliography: Major references and further lectures
1) Doreen Court “Succulent Flora of Southern Africa” CRC Press, 01/June/2000
2) John Robert Brown “Unusual Plants: 110 Spectacular Photographs of Succulents” Abbey Garden Press, 1954
3) Van Jaarsveld, E.J. 1994. "Gasterias of South Africa." Fernwood Press, Cape Town.
4) Van Jaarsveld, E.J. 2007. "The genus Gasteria, a synoptic review." Aloe 44: 4: 84–103.
5) Urs Eggli “Illustrated Handbook of Succulent Plants: Monocotyledons” Springer, 2001
6) Stuart Max Walters “The European Garden Flora: Pteridophyta, Gymbospermae, Angiospermae-Monocotyledons” Cambridge University Press, 1984
7) Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. “Red List of South African Plants.” Strelitzia 25. South African National Biodiversity Institute, Pretoria.
8) Foden, W. & Potter, L. 2005. “Gasteria brachyphylla (Salm-Dyck) Van Jaarsv. var. bayeri Van Jaarsv.” National Assessment: Red List of South African Plants version 2014.1. Accessed on 2015/08/01
9) Aiton, W. 1789. "Hortus Kewensis", edn 1. Nicol, London.
10) Gunn, M. & Codd, L.E. "Botanical exploration of southern Africa". Balkema, Cape Town.
11) Mucina, L. & Rutherford, M.C. (eds) 2006. "The vegetation of South Africa, Lesotho and Swaziland." Strelitzia 19. South African National Biodiversity Institute, Pretoria.
12) Wijnands, O. 1983. "The Botany of the Commelins". Balkema, Rotterdam.
Cultivation and Propagation: They are of easy culture and can grow easily on window sills, verandas and in miniature succulent gardens where they are happy to share their habitat with other smaller succulent plants, or in outdoor rockeries.
Growth rate: They are relatively fast-growing plants that offsets freely to form small clusters quickly.
Soil: It is tolerant of a wide range of soils and habitats, but prefers a very porous potting mix to increase drainage. A non-acid soil is ideal. You can grow a plant in a 10-15 cm pot for years and have perfectly happy plants. For best results, use a shallow pot.
Exposure: Need light shade to shade, but will take full sun part of the day. (with some sun exposure the leaf develops a nice reddish tint and remain compact) During the hot summer months, the soil should be kept moist but not overly wet.
Watering: During the hot summer months, the soil should be kept moist but not overly wet. During the winter months, water only when the soil becomes completely dry. Wet soil quickly causes root and stem rot, especially during chilly winter months. No water should ever be allowed to stand around the roots. Low ambient humidity is always needed.
Feeding: The plants are fertilized only once during the growing season with a balanced fertilizer diluted to ½ the recommended strength.
Hardiness: During the winter months, water only when the soil becomes completely dry. Frost hardy to -1°C (Or less).
Pest and diseases: Rot is only a minor problem with Gasteria if the plants are watered and “aired” correctly. If they are not, fungicides won't help all that much. Incorrect watering, poor drainage or too much shade can lead to attack by pests and diseases. Care must be given in watering, keeping them warm and wet while growing, and cooler and dry when dormant.
Remarks: Gasterias are best planted in a shaded and airy part of the greenhouse, and not too close to the glass roof or sides of the house as the plants can overheat during hot spells.
Propagation: Gasterias are easily propagated by the removal of offshoots or by leaf cuttings in spring or summer. To propagate by leaf cuttings, remove a leaf and let it lie for about one month, giving the wound time to heal. Then lay the leaf on its side with the basal part buried in the soil. This leaf should root within a month or two, and small plants will form at the leaf base. They can also grown from seed.
