Amaryllis are native to tropical and subtropical regions of the world. They are often sold in stores for people to grow indoors for a bit of color during the drab months of winter. The flowers form on long stalks with no leaves and blooms that can be from 6 to 10 inches across. Once your amaryllis blooms, you don't have to throw it away. If you care for it properly, you can have more amaryllis blooms next year.
Cut off the spent blooms off the amaryllis as they fade. Leave the stalks intact until they turn yellow, then cut them off at the base of the plant.
Water your amaryllis regularly. Check the soil around the base of the amaryllis to see if it is moist, by sticking your finger into the soil. If the soil is dry 2 to 3 inches deep, add enough water that it leaks out of the bottom of the pot.
Fertilize your amaryllis once a month with 1 tsp. of 5-10-5 houseplant fertilizer. Sprinkle the fertilizer onto the soil around the amaryllis and water it until water leaks out of the bottom of the container.
Keep your amaryllis in partial sun until the last freeze has passed. Place your amaryllis outside in a shady location and keep watering and fertilizing it for five to six months.
Stop watering and fertilizing your amaryllis gradually after the five to six months have passed. Once the foliage has died back, cut it off about 1 to 2 inches from the base of the plant. Place your amaryllis in a cool, dark place, between 50 and 60 degrees F, and leave it there for eight to 12 weeks.
Bring the amaryllis out of dormancy by placing it in the light and watering it.