Lisianthus flowers are most commonly available in cool tones, but you may occasionally see yellow or carmine-red flowering plants for sale. Single or double three-inch blooms (most popular with florists) grow in every variation of pink and purple, as well as white and picotee bicolors. The flowers are attractive in bud as well as in full bloom. Plants usually yield several blooms on each stem. Foliage is dark green and lance-shaped.