Amaryllis belladonna, also known as the belladonna lily, thrives in warm winter climates like California, where it can be grown outside. The leaves, which are long and strap-like, do not develop until after the flowers have died. Flower stalks do not emerge until long after leaves have died back.
When flowers appear in the fall, they are trumpet-shaped and fragrant in shades of pink, white or red. Each flower is about 4 inches long, with numerous blossoms appearing on each 18-inch-tall flowering stem.
Amaryllis belladonna should not be confused with the unrelated Atropa belladonna, which sometimes goes by the common name "belladonna." Atropa belladonna is a member of the nightshade family, with much smaller flowers and shiny black berries. Parts of Atropa belladonna are poisonous.