Amaryllis Apple Blossom ~ Set of 2 Bulbs Pink and White Flowers The amaryllis originated in South America's tropical regions. The large flowers and ease with which they bloom make amaryllis popular and in demand worldwide. It seems impossible that six or more enormous, 6 - 8 inch blooms could emerge from a single bulb. Watching an amaryllis bulb come into flower is like seeing a gardening miracle.