Pelargonium grandiflorum

Pelargonium grandiflorum is a species of pelargonium, commonly known as the Martha Washington geranium or Lady Washington geranium. These plants are popular for their showy flowers, which range from white to crimson and often feature dark blotches on the upper petals.1

While often referred to as geraniums, these plants belong to the genus Pelargonium, which is closely related to the true geranium genus (Geranium). Pelargonium grandiflorum is believed to be a complex hybrid derived from several southern African pelargonium species. These plants are typically grown as bedding or greenhouse plants and are propagated by stem cuttings, with flowering plants developing in four to five months. Some species within the Pelargonium genus are also commercially important for producing geranium oil, an essential oil used in perfumery.12