When can I move my amaryllis outdoors?
The amaryllis can be moved outdoors in late May. When the amaryllis is moved outdoors, harden or acclimate the plant to the outdoor environment by initially placing it in a shady, protected area for 2 or 3 days and then gradually expose it to longer periods of direct sun. Once hardened, select a site in partial to full sun. Dig a hole and set the pot into the ground. Outdoors, water the plant during dry weather. Also, fertilize the amaryllis once or twice a month through July with a soluble houseplant fertilizer. Bring the plant indoors in mid-September.