Pelargonium is a genus of flowering plants which includes about 200 species of perennials, succulents, and shrubs, commonly known as geraniums or storksbills.
Species of Pelargonium are drought and heat tolerant, and can tolerate only minor frosts. Pelargoniums are extremely popular garden plants, grown as annuals in temperate climates, and thousands of ornamental cultivars have been developed from about 20 of the species.
Currently, there are more than 75 different commercial cultivars of ivy geraniums. They vary in foliage color, size, variegation, bloom color and growth habits. Most of today's ivy geraniums are asexually propagated by rooted cuttings. They root easily in a moist, porous, well-drained rooting medium. Ivy geraniums can be grown from seed and germinate under similar conditions. The seeds are sown in January for optimum-sized transplants in the spring.
Ivy geraniums prefer moderate temperatures. Varieties also differ in their response to light levels. Too much light sun may result in small, cup-shaped leaves and small blooms. Ivy geraniums require moderate soil moisture levels - not too much and not too little.