The Hippeastrum Amaryllis Susan is a rose colored amaryllis that blooms about three weeks after planting. The TyTy Nursery sells potted amaryllis at our warehouse for flowers fresh for your house. The delicate flower of the Susan Amaryllis forms about three weeks after planting.• The Susan Amaryllis bulb often will produce multiple flower stalks. The Susan Amaryllis blossom will have a more intense color when planted near a brightly lit window. Susan Amaryllis are very colorful bedding plant subjects for Spring flowers.