Hedera — 7 species

Hedera encompasses the true ivies, fast-growing evergreen climbers and trailers used indoors as hanging plants and outdoors as ground cover. English ivy (Hedera helix) and its cultivars — including 'Glacier', 'Goldheart', and the neatly lobed 'Ivalace' — adapt to bright indirect light indoors but tolerate lower-light spots; variegated forms need more light to hold their colour. Water when the top inch of soil dries out, and avoid waterlogging. The ASPCA confirms all Hedera species are toxic to both cats and dogs, causing vomiting, hypersalivation, and abdominal pain — keep them well out of reach of pets.