Ivy geraniums (Pearonium peltatum) are similar in appearance to their relatives the zonal geraniums (Pelargonium Xhortorum), but their shiny leaves on cascading stems make them ideal for hanging pots and window boxes. Natives of Cape Province, South Africa, ivy geraniums were introduced to Europe in the 1700s and became popular, especially at cooler, higher elevations, because of their bright flowers and hardy nature. Ivy geraniums require slightly different care than do the more common zonal geraniums, but they are quite easy to grow successfully.
Select a healthy potted ivy geranium specimen, free from bugs or leaf deformities.
Place the pot in a plant hanger or window box. If locating the plant on the ground, place two bricks under the pot with space between them to allow air circulation.
Place the ivy geranium in a location receiving full sun where daytime temperatures are between 60 and 80 degrees. Move the ivy geranium to a location that receives mid-day shade or light daylong shade if the temperature in full sun exceeds 85 degrees. Move the pot indoors to a sunny window when nighttime temperatures fall below 40 degrees.
Water the ivy geranium consistently and evenly. Do not saturate the soil or allow it to dry out. Avoid getting water on the leaves.
Feed the ivy geranium a diluted solution of water-soluble fertilizer every two weeks. Deadhead ivy geranium flowers only if necessary to maintain an attractive appearance.