Ah, a holiday horticulture question! Christmas cactus is a beautiful plant that adds a touch of festive charm to any home during the winter season. The key to transplanting a Christmas cactus is to be gentle and careful to preserve its delicate roots. You'll need to find a pot that's slightly larger than the plant's current container and fill it with fresh soil that's specially formulated for cacti. Then, carefully remove the plant from its current pot and gently place it in the new pot, taking care not to damage the roots. Water the plant sparingly until it's fully acclimated to its new environment.