Pelargonium xerophyton can be propagated from both seed or by vegetative means. Stem cuttings are the most preferred method, pelargoniums propagated using this method usually flower within 3-6 months as compared to 12-18 months when sown from seeds. Cuttings may be taken all year round although they will root faster during summer and autumn. It is recommended to take cuttings from terminal growing points, although lower pieces of the stem may also be used. The selected mother plant for cuttings should be disease-free, cuttings should contain at least 3-5 leaf nodes and the basal end should be cut neatly just below a leaf node. The cuttings should be rooted in trays containing any available well-drained medium, preferably sand covered with a thin layer of milled bark and polystyrene (5 mm). A rooting hormone for semi-hardwood cuttings can be used to improve rooting. Pelargonium xerophyton requires a well-drained medium and must not be over-watered as they are prone to rot. It is advantageous to plant them shallowly in their growth medium with a layer of grit on the surface for support, this reduces the chances of rot at the soil surface. Cuttings should be watered only when they are completely dry, at all times of the year. The completed tray of cuttings should be watered with a general use fungicide that controls damping-off, after root formation, a feed with a liquid, seaweed-based fertiliser is recommended. Cuttings need to be potted on before the plants become root-bound and must be done with minimal root disturbance.

Seeds can be collected at the stage of natural dispersal when they are at full maturity. To obtain optimum germination, it is best to sow seeds when fresh, although they may remain viable for several years provided that appropriate post-harvest handling techniques are followed, and seeds are stored in a temperature regime of -20°C. A light well-drained soil with a high content of coarse sand is ideal for seed sowing. A 100 mm deep tray with numerous drainage holes in the base should be used for sowing seeds. Prior to filling the container with growing medium, place a layer of roughage, such as small rocks, gravel or bark pieces at the bottom, this process should be followed by firming down the soil and levelling off with a plank. Soil must be slightly moist and therefore, watering is recommended. Seeds should be broadcasted evenly and covered with a thin layer of clean white sand. Depth of sowing should be restricted to one and a half times the size of the seed. Moreover, water thoroughly using a fine hose at a low pressure to prevent soil and seed wash off.

Grow Pelargonium xerophyton in sun, semi-shade or light shade, in well-drained, sandy or gritty soil suitable for succulent plants. In dry, frost-free gardens it can be grown outdoors, best in a rockery. These plants are adapted to very nutrient-poor soil and dry conditions, and are prone to rotting when grown in wet, damp or humid conditions. Feed moderately with a fertilizer formulated for succulents. Take care not to overwater and protect from wet conditions. Keep dry in summer. Protect from frost.