Amaryllis is a bulb that flowers very easily indoors. Choose a sturdy pot. Place a layer of potsherds or hydro granules at the bottom of the pot. Plant the bulb in a pot filled with good quality potting compost. About a third of the bulb needs to be out of the compost. Place the amaryllis bulb immediately in a warm place in full light. Water immediately but not too much. When you see that the bulb is starting to grow, you can give a little more water.