The roots will eventually grow into the bed. Should harsh weather hit, the pot can be lifted and the bulb moved temporarily to a protected area. While those roots in the garden bed will be torn, those within the container will not be damaged. Amaryllis need a year to acclimate in the garden. Then the bulbs will begin a natural spring-flowering period.
Water amaryllis regularly through spring and summer.
Decrease watering when the foliage yellows, as lower fall temperatures trigger dormancy. Amaryllis are known as heavy feeders, and the bulbs benefit from organic and synthetic nutrient sources. Do not fertilize bulbs during dormancy. Lay container plants on their sides in a cool place during dormancy. Mulch garden bulbs.