Ivy pelargoniums get their name from the resemblance of their leaves to Hedera species, (the garden ivies). Their parents, or at least one of them, Pelargonium peltatum, gives them shield shaped leaves and a trailing form. But they have also been crossed with the P. x hortorum group, the zonal pelargoniums, and that has increased their color range and changed their form. Ivies are very useful in hanging baskets, for draping over walls, or as a ground cover. The Balcon "geraniums", correctly pelargoniums, are an allied group whose use in window boxes is noted by every traveller to Europe.