Adromischus marianiae (Marloth) A.Berger
Adromischus marianae, Cotyledon marianae
This species is native to South Africa (Little Namaqualand).
Adromischus marianiae is a small, sparingly branched succulent with gray, usually thin and short branches with clusters of grey leaves with a few scattered purple spots. It is a very variable species that slowly grows up to 6 inches (15 cm) tall. Leaves are linear-elliptic to linear-lanceolate with a short petiole, raised margins, and a more or less pronounced central groove on the upper surface. They are up to 3.2 inches (8 cm) long and 0.9 inches (2.2 cm) wide. Flowers are green, tinged with pink, up to 0.5 inches (1.2 cm) long, and appear on up to 14 inches (35 cm) tall inflorescences with 1- to 3-flowered cymes in summer.
USDA hardiness zones 10a to 11b: from 30 °F (−1.1 °C) to 50 °F (+10 °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.
See more at How to Grow and Care for Adromischus.
Varieties and Cultivars
- Adromischus marianiae var. immaculatus
- Adromischus marianiae 'Alveolatus'
- Adromischus marianiae 'Little Spheroid'
- Adromischus marianiae 'Herrei'
- Back to genus Adromischus
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus
Click on a photo to see a larger version.