Aeonium diplocyclum (Webb ex Bolle) T.H.M. Mes
Aeonium diplocyclum, also known as Greenovia diplocycla, is a succulent plant that forms a rosette of light yellowish-green leaves if grown in full sun and finely white powered if grown in full sun. The rosette grows up to 8 inches (20 cm) in diameter. During their summer dormancy, the rosette will close cup-like, and it is covered with dry beige-red leaf sheaths. Flowers are larger than those in Aeonium aureum, and young leaves are ciliated at their edges. The rosette remains solitary, and it will never form any offsets.
USDA hardiness zone 9a to 11b: from 20 °F (−6.7 °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 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 needs moisture. If you are growing them in containers, repot every 2 to 3 years with fresh potting soil.
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.
This succulent is native to Canary Islands (La Palma, El Hierro, and La Gomera).
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