Ceropegia — 10 species

Ceropegia is a diverse African and Asian genus of semi-succulent trailing and twining plants, best known for Ceropegia woodii (string of hearts) and the slender-stemmed C. linearis (string of needles). Most prefer bright indirect light — a sunny windowsill without harsh midday rays suits them well. Water sparingly: let the soil dry out completely between waterings, as tubers and stems rot quickly in moisture. Toxicity varies across the genus; check each species before buying. C. woodii is listed as non-toxic to cats and dogs by the ASPCA, but not all species carry that clearance.