Like most Amaryllis, Papillio is a temperennial, meaning that it is perennial only in the warmest climates. In Zones 9, 10, and 11 this Amaryllis will thrive planted right in the garden, blooming in mid spring. But for most of the US it is not cold hardy and should be grown in a container.
On the patio, enjoy Papillio's bloom show outdoors, then when evening temperatures start to dip in the fall, bring it indoors to go through its dormancy. Keep it in a cool, dark, and dry place until next spring when all threat of frost has passed.
Alternately, you can keep Papillio indoors all year as a houseplant, which has the advantage that it allows you to force its bloomtime, producing exquisite tropical flowers through the dead of winter! To achieve this, put the plant in a south-facing window around October and begin watering it. The bloom show will dazzle you over the winter months. After the blooms are spent, the foliage will continue to gather energy for next year. Wait until the leaves naturally "flop", which means the plant is going dormant, then trim back the foliage and stow away the bulb until next Fall!
Papillio is a slow and steady Amaryllis. For the first year or two it may not bloom at all, and when it does it tends to be later in the season than other Amaryllis. Once it becomes established, though, you will see that the wait is well worth it! Growing larger and more impressive each year, once mature this Amaryllis reliably sets 4 to 6 stunning blooms, each perfectly patterned and over 6 inches wide! Zones 9 to 11. Bulb size is 24/26.
Note: Amaryllis are toxic if ingested, so keep pets and children away from them.