Stake the plant if the stalk grows more than 20 inches tall, taking care not to injure the bulb. Then sit back and enjoy the show. One to three huge blooms per stalk will last for several days, if the plant is kept in a cool room, especially at night. Keep your plant away from heat sources such as furnace vents and wood stoves. To keep the bulb healthy and in shape to bloom each year for many years to come is a little trickier.
Experts advise to keep the plant growing once it has bloomed.
Cut off spent flowering stems then continue to water and fertilize it through the winter and spring. In summer, place the plant outdoors. In October, stop watering to allow the pot to dry out. The foliage will gradually turn yellow. Cut off the leaves to within two inches of the soil line.