'Hardy Species Mix' Hens & Chicks - 4 Plants - Sempervivum - 3" Pots Color of Bloom: Pink & Red Hardy Zones: 3-11 Mature Height: 4-6" Full Sun to Part Shade Sunlight brings out bright colors in Sempervivums. When planted in shade or grown indoors away from a sunny window, many varieties tend to fade to a plain green color. It can take up to 3 years to develop the pictured colors.