Outsidepride Sempervivum Hybridum Hens & Chicks Plant Seed - 1000 Seeds Sempervivum hens and chicks in a low growing, drought tolerant, hardy, succulent plant grown as a perennial in USDA zones 3 - 10. They only grow to approximately 2 - 4 inches tall and needs very little water; however, keep sempervivum seeds continually moist until germination. This succulent seed mix forms foliage colors which can vary from greens to bronze-reds and shades all between. Hens and chicks grows well in full sun to partial shade and prefers well-drained soil. It also is usually resistant to deer making it an excellent ground cover. Sow approximately 1000 seeds to cover 20 square feet to have a dense groundcover producing a mat of plant foliage.