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Orostachys malacophylla (Green Duncecap)

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Scientific Name

Orostachys malacophylla (Pall.) Fisch.

Common Names

Green Duncecap

Synonyms

Cotyledon malacophylla (basionym), Orostachys malacophylla subsp. malacophylla, Sedum malacophyllum, Umbilicus malacophyllus

Scientific Classification

Family: Crassulaceae
Subfamily: Sedoideae
Tribe: Sedeae
Subtribe: Umbilicinae
Genus: Orostachys

Description

Orostachys malacophylla is a small succulent plant with rosettes, up to 6 inches (15 cm) in diameter, that develops into dense clumps of ground cover. Leaves are green to pale green, up to 2.8 inches (7 cm) long and up to 1.2 inch (3 cm) wide. In summer, the rosettes rise like an erupting volcano as they burst into flower. goes dormant in the winter, losing all of its aboveground foliage, but returns in full force in the spring.

Hardiness

USDA hardiness zones 5a to 8b: from −20 °F (−28.9 °C) to 20 °F (−6.7 °C).

How to Grow and Care

As with most similar genera of Crassulaceae family, this plant can survive in fairly poor soil, so long as it is well draining. This genera is very cold-hardy and can survive temperatures to -30 °F (-34 °C). Allow soil to dry to the touch between waterings and avoid getting water on the rosettes. Orostachys requires some bright light. This plant doesn't tolerate high humidity well. It grows actively in spring and summer.

Orostachys self-propagates through offshoots and given time one plant will form a dense mat of many. Propagation is primarily through offset separation.

To separate an offset, remove soil from the base of the offset to find the stolon (thick root which attaches the pup to the mother plant). It is best to use an offset which has already established some roots of its own. Cut the stolon close to the pup (to discourage roots growing from the stolon). Place the offset into a small pot with well-draining, sandy soil. Do not water until new growth is noted.

Learn more at How to Grow and Care for Orostachys.

Origin

Orostachys malacophylla is native to China, JapanKorea, Mongolia, Russia.

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