• Gasteria nigricans var. marmorata f. variegata
• Gasteria obtusa f. variegata cv. Silver

• Gasteria brachyphylla (Salm-Dyck) van Jaarsv.
• Aloe brachyphylla Salm-Dyck
• Aloe pseudonigricans Salm-Dyck
• Gasteria angustiarum Poelln.
• Gasteria fasciata var. laxa Haw.
• Gasteria joubertii Poelln.
• Gasteria nigricans var. marmorata Haw.
• Gasteria nigricans var. marmorata f. variegata
• Gasteria obtusa f. variegata cv. Silver
• Gasteria nigricans var. platyphylla Baker
• Gasteria nigricans var. polyspila Baker
• Gasteria fasciata var. polyspila (Baker) A.Berger
• Gasteria subnigricans Haw.
• Aloe subnigricans Spreng.
• Gasteria subnigricans var. canaliculata (Salm-Dyck) A.Berger
• Aloe subnigricans var. canaliculata Salm-Dyck
• Gasteria subnigricans var. glabrior Haw.
• Gasteria transvaalensis Baker
• Gasteria triebneriana Poelln.
• Gasteria vlaaktensis Poelln.

Description: Has fat coriaceus leaves striped with ridged surface of gray-silver and ivory.

Cultivation and Propagation: It is of easy culture and can grow on window sills, verandas and in miniature succulent gardens where it is happy to share its habitat with other smaller succulent plants, or in outdoor rockeries.
Growth rate: It is a relatively slow-growing plant that offsets to form in age small clusters..
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.