Aeonium diplocyclum 'Giganteum'
Aeonium diplocyclum 'Gigantea', Greenovia diplocycla 'Gigantea', Greenovia diplocycla var. gigantea
Aeonium diplocyclum 'Giganteum', also known as Greenovia diplocycla 'Gigantea', is an attractive succulent that forms rosettes of soft, rounded, bluish-green leaves. The rosettes grow up to 18 inches (45 cm) in diameter. Under drought conditions, the leaves close into a tight, cool-looking ball. It can take years to bloom when it is topped by a large inflorescence of yellow flowers.
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. They may go dormant in summer and do not require any 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 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 Aeoniums need some 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 that 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.
Aeonium diplocyclum 'Gigantea' is a cultivar od Aeonium diplocyclum.
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