20 LEWISIA cotyledon Seeds'Rainbow'Mix ,Excellent in containers, hardy perennial 20 LEWISIA cotyledon Seeds'Rainbow'Mix ,Excellent in containers, hardy perennial Lewisia Rainbow Hybrids mix will grow approximately 10 inches tall from flower seeds. This award winning mix features many colors and forms, the widest color range in Lewisia to date. Round, wide, petalled flowers include some semi-doubles. Colors range white, yellow, pink, red/orange, blue/red. Use this wonderful Lewisia plant for borders, perennial containers, rockeries, and xeriscape gardening. Lewisia will typically begin blooming in May and continue to put on a display of flower clusters clear in to early Fall.