Aeonium mascaense Bramwell
This species is native to the Canary Islands (Tenerife). It is thought by some to be a natural hybrid resulting from the cross between Aeonium haworthii and Aeonium sedifolium.
Aeonium mascaense is an attractive much-branched succulent subshrub with slender stems with rough leaf scars and tipped with small dense rosettes of glaucous green leaves with red margins and a strong red stripe down the middle. It grows up to 10 inches (25 cm) tall, forming a nice mound. Leaves are thick, fleshy, spoon-shaped, with long forward-curved cilia on the margins, and up to 1.4 inches (3.5 cm) long. Flowers are white to pale pink and appear in lax clusters on erect, up to 12 inches (30 cm) tall stems with a few bracts.
The specific epithet "mascaense (mas-kay-EN-see)" refers to the type locality in the Masca Gorge.
USDA hardiness zones 10a to 11b: from 30 °F (−1.1 °C) to 50 °F (+10 °C).
How to Grow and Care
Aeoniums do not like hot or dry weather. Therefore, they may go dormant in summer and require no water, except in arid conditions. In extreme heat, their leaves will curl to prevent excessive water loss. Growing them in moist shade will keep them growing, but their true growth season is winter to spring, when temperatures are cool, 65 to 75 °F (18 to 24 °C), and damp. In the winter, water whenever the soil has dried out. Test by poking your finger down into the soil an inch or 2 (2.5 to 5 cm). Too much moisture or allowing them to sit in wet soil will cause root rot.
A sandy loam or regular potting mix is better than a mix specifically for cacti and succulents since Aeonium needs some moisture. If you are growing them in containers, repot them every 2 to 3 years with fresh potting soil.
Feed during the growing season with a half-strength balanced fertilizer every month or so. Do not feed while dormant.
Learn more at How to Grow and Care for Aeonium.
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