Blue Chalk StickBotanical Name: Senecio serpens Common Names: Blue chalk stick Description: Native to South Africa, blue chalk stick is a hardy succulent with a beautiful blue green foliage. It does best in bright, direct sunlight, so place in front of the brightest window you have. During the growing season, it is highly drought tolerant once established and only needs to be watered every few weeks. For new plants, though, water once a week. Can grow up to 12" tall