Aeonium nobile (Praeger) Praeger
Sempervivum nobile, Megalonium nobile
Aeonium nobile is a robust species that forms large rosettes up to 15 inches (38 cm) across with thick fleshy orange to red-tinged olive-green rounded-tip triangular leaves that form atop a stout upright unbranched stem up to 2 feet (60 cm) tall. After several years the plant matures and in late winter to spring produces a large inflorescence that rises on a red stalk to display a flattened capitate head over 1 foot (30 cm) wide and nearly as tall with many small star-shaped red flowers with white anthers. This is one of the monocarpic species of Aeonium so it only flowers once but then often gardeners are rewarded with many seeds to perpetuate this beautiful plant.
How to Grow and Care
Aeoniums do not like really hot or dry weather. They may go dormant in summer and do not require any water, except in very dry 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 (65–75˚F / 18–24˚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 two. 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 need some moisture.. – See more at: How to Grow and Care for Aeonium.
Propagate Aeoniums by stem cuttings, except for unbranched species which die after flowering and are propagated from seed. Take cuttings when the plant is actively growing, usually fall in USDA zones 9 through 11. Aeoniums go dormant in summer; cuttings taken while plants are dormant don’t root. Each leaf rosette dies after it blooms…. – See more at: How to Propagate Aeonium.
Native to Canary Islands.
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