Kalanchoe in a red pot. Kalanchoe is a dark green, succulent perennial with scallop-edged leaves and large umbels of flower clusters held above the foliage. It has an upright, multi-branched growth habit. Their bloom time is incredibly long for a houseplant. These bright red, pink or yellow flower clusters last for weeks. Birthday gift, gift for mother, gift for girlfriend or gift for anyone that loves flowers.