Growing amaryllis indoors is a great way to have luxurious, large flowers indoors during the drab winter months. It’s actually fairly easy to get them to rebloom year after year. Here are the steps if you are starting out now with a new bulb, which typically go on sale at hardware and department stores as well as gardening centers sometime in the month of November.
1. Plant the bulb. The bulbs like snug containers, and the pointy top 1/3 of the bulb needs to be above the soil level in the pot. The little plastic pots that come with the bulb that you purchase have no drain holes, so you will not need a saucer beneath them, but you also have to water carefully so you do not waterlog the bulbs. Water so it’s moist but not soggy, and place the pot in a sunny window.
2. Continue to water and fertilize with a complete organic fertilizer every two weeks after planting. Eventually leaves will sprout from the bulb, and a thick stem will emerge, from which the flower head will grow. With a smaller bulb, this may or may not happen the first year, but should as the bulb matures. I have read that for every five leaves on the bulb, you will get one flower stalk. My younger bulbs have bloomed with as few as three leaves. My bulbs are not mature enough to have more than five leaves at this point, but we will see if this is true as time goes on.
3. After the bulbs have bloomed, hopefully around or just after the winter holidays, continue to water and fertilize every other week all winter, and through the spring and summer. In the summer, if you wish, you may move the pots outdoors in a protected spot like a porch in July when it warms up, but they also do well hanging out indoors in front of a sunny window.
4. In the beginning of September, stop fertilizing the pots, and cut way back on watering. You want them to dry out a bit, but not die from lack of water. Very little is needed. Foliage may wither and die at this point, and that is fine–simply use a scissors and cut off any unsightly browned foliage as it occurs. If the pots were outside for the summer, in the beginning of September bring them back inside to their sunny window. Keep the pots barely moist and no fertilizer for the months of September and October.
5. Starting in the beginning of November, resume watering and fertilizing every other week, and keep them in a sunny window. This will help to wake up the bulbs, and they should start eventually to send out new foliage and flower stems.
Another note: The flower stems can get very tall, and so I like to keep very slender stakes, even a thin skewer or chopstick can work, and slide them into the pot and use twine or even ribbon to tie the stem to the stake, so that it doesn’t break. I had a cat knock one over, and the stem was hanging over. I used scotch tape to wrap around the stem and stake to get the damaged stem back up into an upright position, and it actually bloomed, but your mileage may vary.
That’s all there is to it–as you can see, a very easy process. You can place plain pots together in decorative baskets found very inexpensively at thrift stores, and cover the top with Spanish moss to hide the pots, making a lovely holiday decoration for your home.