A small genus of summer growing members of the Amaryllidaceae from South America.
These are readily grown in a loam based compost under glass and although they are not hardy, they will succeed in the UK under cold glass as long as they are planted late in spring once severe frosts have passed. They can then be grown on over summer but lifted and dried in autumn. Winter storage can then be frost-free. My pet name for this is the 'potato cycle' as they are grown in the same way.
According to species the flowers are bright yellow or deep red-orange.