The succulent still produces many vitamins and other critical elements needed for survival. It is important that the cactus's soil be at least 2 inches long. Once you have your gloves on, grab your new pot and cactus soil and fill it up, leaving some room for the plant and its roots. The plant should receive ample sunlight. In order to produce seedlings, they will need to be pollinated. If you do not plan to plant Christmas Cactus seed right away, allow them to dry thoroughly before storage. It is possible to propagate Euphorbia flanaganii using seeds.