Amaryllis flowers are an ideal flower to force-bloom in the middle of the winter for the home gardener. Force blooming is when you make the bulbs bloom out of their normal cycle, such as during the winter holidays, when no flowers are blooming. It is a great way to have fresh flowers in the middle of winter. With just a few supplies and the right set of conditions, you can produce a tropical flower that looks like it was just picked from the rain forests. Expect to have the most gorgeous blossoms around six to eight weeks after you plant it.
Prepare your vase by filling it with three inches of the washed pebbles. This will be the structure that the roots hold on to while they provide the bulb with moisture. You do not have to use pebbles if you do not have access to them. Instead you can experiment with different planting mediums like marbles or beads or sand--whatever you think will look nice through the glass vase.
Clean up the bulb by removing any brown or dried up roots. You only want to see the white fleshy roots at the base of the bulb. Any dead plant matter will rot in the moist environment and will foul up the water, making it stink over time.
Set the bulb on top of the planting medium and cover the roots with some more of the pebbles or whatever you are using. You can actually cover the whole bulb except for the tip if you would like to.
Add water to the vase so that it comes up just below the bottom of the amaryllis bulb. The roots should be in the water, but the bulb cannot be sitting in water or it will rot. You should be able to see it clearly through the glass sides of the vase.
Set the vase in a sunny window for six to eight weeks for it to blossom. Once it flowers, if you wish to extend the life of the blossom, carefully trim off the anthers that carry the pollen and you might get a few more days of showtime.
Plant the bulb outside in rich soil after the blossoms have wilted and been trimmed down. Allow the greens to grow and rejuvenate the bulb for as long as the ground is warm. Bring the plant indoors a sunny spot and stop watering it. Once the leaves die off, you can place it in cool dark storage until you are ready to plant the bulb again.