From Gardener's Supply (www.gardeners.com)

Amaryllis Care

Amaryllis blooming on a windowsill during winter

Amaryllis make easy-care houseplants and really brighten a winter windowsill. A support stake will keep the heavy stems upright.

FEW bulbs are easier to grow than amaryllis — and few bloom with greater exuberance and beauty. Just plant the bulb in good potting soil, water regularly and provide bright, indirect light. A support stake is handy for keeping the blooms upright, but little else is required. Most varieties will begin blooming six to eight weeks after planting; some can take as long as ten weeks.

If your amaryllis is not already potted, plant each amaryllis bulb in a 6-8" pot. Heavy pots are preferable because lightweight pots may tip over under the weight of the blooms. Plant the bulb, pointed-end-up, in potting soil. Do not use soil from the garden because it will not drain properly. Pack the soil gently around the bulb so approximately one-third of the bulb remains above the soil line.

Place the pot in a location that receives bright, indirect light. Water sparingly until you see about 2" of new growth. From then on, water regularly. As the plant grows, turn the pot periodically to encourage the flower stalks to grow straight. Flower buds will appear at the top of each stalk, followed by a dramatic floral display. To prolong the blooms, keep the pot out of direct sunlight.

Amaryllis bloom chart
Planting date Bloom timeframe
Dec. 1 Jan. 7-28
Dec. 15 Jan. 19-Feb. 9
Jan. 1 Feb. 6-26
Jan. 15 Feb. 19-March 12
Feb. 1 March 8-29
Feb. 15 April 5-26

When will it bloom? It depends. In general, it takes six to eight weeks for amaryllis to bloom, but check the label on the variety you have — some bloom faster, and some slower.

For Bloom Next Year

Amaryllis can be encouraged to blossom again the following year. It takes a little planning and extra care, but is quite simple and very rewarding. After the flowers have faded, cut the flower stalk to within 1" of the top of the bulb. Continue to water and feed the plant regularly with a liquid houseplant fertilizer. Amaryllis will grow a number of leaves during the spring and summer. This will help the plant produce energy for the following year's bloom. In mid-August, begin withholding water and let the foliage die back naturally as the pot dries out completely.

Store the dormant bulb in a cool, dark and dry place for a minimum of eight weeks; longer is fine. Then, about six to eight weeks before you want the amaryllis to flower again, repot the bulb in fresh potting soil and place it in bright, indirect light. Resume watering — sparingly at first. Once you see new growth, increase watering and look forward to the upcoming flower show. By following these basic care guidelines, you will be able to encourage your amaryllis to flower year after year.

 

More tips and advice from Laura at Garden Answer.