Sprekelia formosissima is native to Mexico. They do best in well-drained alkaline soil kept dry during their winter dormancy. However, in my very wet winter and spring here in the Pacific Northwest, it has survived and bloomed two years in a row before succumbing to a gopher. I am going to try it again and plant euphorbia beside it.
They benefit from a feeding in the growing season the same as, say, tulips and daffodils.

Requires genetic material from two different clones to set seeds. Once you have mature seed it takes about 7 years for the plant to mature and bloom.

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Distinctive presentation. Larger bulbs capable of more than one blooming stem. Overwintered dry in basement.
"Looks like an Amaryllis that wants to be an orchid"
Seem to flower best when left undisturbed in pot following year.

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