There is slight difference between the two species. An Easter cactus has leaves that are wide and round and trimmed with a red tint. The Christmas cactus' leaves are pointed.
The Easter and Christmas cactus flowers are similar. Both plants sprout beautiful star-like flowers in a variety of reds, pinks and whites, growing from the tips of leaves.
September and October are the pre-flowering months for Christmas cactus plants. The Easter cactus' pre-flowering time is January, February and March. Both species require that they be kept dry and cool until flower buds form.
The Easter cactus, a spring bloomer, has been considered to be a symbol of rebirth. The Christmas cactus is a sign of the holidays, similar to a poinsettia. Do not fertilize the plants when they are blooming because this will interfere with flowering.
After the Christmas and Easter holiday seasons, the plants should be given about a 30-day rest. Place them in a cool room and provide limited water. Don't worry if they lose a few leaves; it's normal.