Amaryllis belladonna
is the true amaryllis, although the name is also commonly given to
unrelated hippeastrum bulbs, which are grown indoors over winter. Amaryllis belladonna
is a late-summer flowering bulb, bearing showy flowers on naked stems,
before strap-like leaves appear in autumn. Grow it in large clumps,
where its flowers can be fully appreciated. It makes a great planting
partner for silver-grey leaved plants such as caryopteris.
For best
results grow in full sun in moist but well-drained soil. Being
half-hardy, it can be caught by early frosts, so ideally offer some
protection such as planting bubs in front of a south-facing wall. Avoid
disturbing the bulbs for a season or two, as they take a while to become
established. In colder regions, grow Amaryllis belladonna in pots on the patio, which you can bring indoors over winter.(source - internet )
