Pelargonium capitatum can easily be grown from seeds and cuttings. Cuttings can be grown at any time of the year. Soft, herbaceous stem cuttings should be taken and a rooting hormone applied to it to stimulate the rooting process. The cuttings are then placed in a coldframe to root. Rooting of this species usually takes about three weeks. Once the cuttings have rooted they can then be potted in a well-drained potting soil mix.

Pelargoniums can also be grown from seed in late summer and early autumn. The seed of pelargoniums is quite interesting in that attached to the elliptically shaped seed, is a feathered, tail-like structure that is coiled in a spiral. The tail allows the seed to drill and secure itself in the soil if twisted around by the wind or affected by the movement of animals. Sow the seed in a light, well-drained potting soil. Broadcast the seeds evenly in the seed tray, covering them with a layer of clean, white sand. The depth of sowing is usually one-and-a-half times the size of the seed. Water thoroughly but gently and provide light shade. Germination usually takes place within three weeks. Pelargoniums grown from seed are generally more vigorous than those made of cuttings; however, they take longer to flower. The plant grows easily in a coastal garden that has sandy soil conditions. It can be planted among smaller herbaceous border plants in a garden bed. It is also suited for terra force walls.