Adromischus trigynus (Burch.) Poelln.
Cotyledon trigyna, Adromischus rupicola
Adromischus trigynus is a dwarf succulent with grey-green leaves mottled and often with a purplish-maroon marginal tinge. It grows up to 1.8 inches (4.5 cm) tall and up to 5 inches (12.5 cm) in diameter. Leaves are compactly arranged, obovate to nearly orbicular, convex both above and beneath, and up to 1.4 inches (3.5 cm) long. Small, white, or tinged pink flowers emerge on up to 14 inches (35 cm) long stalks in late spring. They are not particularly showy.
USDA hardiness zones 9b to 10b: from 25 °F (−3.9 °C) to 40 °F (+4.4 °C).
How to Grow and Care
Many species are easy to grow in any free-draining, gritty compost. Their compact habit allows a collection to be maintained in a small space, and they grow well on any sunny window ledge or the top shelf of the greenhouse. Water mostly from spring to fall and let them dry out between waterings. Adromischus tolerates cool, frost-free conditions during the winter if kept dry. It is as well to keep water off the foliage during the winter. Mealybugs and vine weevils can be discouraged with a systemic insecticide.
Adromischus can be propagated from a single leaf, which should be placed against the side of the pot so that the stem end is just touching the compost. Some species drop their leaves easily, and although each leaf will form a new plant, it can be a challenge to grow a large specimen. In other cases, leaves for propagation must be carefully detached with a sharp knife.
Learn more at How to Grow and Care for Adromischus.
Adromischus trigynus is native to South Africa.
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