With its drooping branches and rosy flowers, this tropical cactus is a real looker, and it releases oxygen at night instead of throughout the day, which is good news for your sleep quality. Christmas cacti are a completely popular houseplant-and for desirable purpose! When they bloom, they produce colorful, tubular flowers in purple or lilac colors. Their beautiful flora, lengthy bloom time, and clean care necessities lead them to a splendid plant...