Serruria candicans is propagated by both seed and cuttings. In cultivation, spiderhead bushes are short-lived plants and will have to be re-propagated after 5–7 years. Sow the seed when the temperature has begun to drop to cool during the nights, which is in late summer to autumn (February to April), in the Western Cape. Treat the seeds with systemic fungicides prior to sowing, to prevent pre-and post-emergence damping-off fungi. Use a well-aerated medium and free draining pot and cover the seeds lightly with the sowing medium. Treat the seed with smoke derived from burning dry and green fynbos or use the seed primer discs. Germination takes 3 to 4 weeks. Pot the seedlings in acidic soil, preferably between 5–7 pH levels. However, much of the propagation is done by cuttings, as a result of germination failure because of seeds being collected prematurely.

Collect the cuttings of semi-hardwood material in midsummer and autumn (December to March), and take the cuttings in the morning to reduce moisture loss. Dip your cuttings in fungicidal water for few seconds. Treat with a rooting hormone to stimulate rooting, dipping the cutting in the rooting hormone for at least 5 seconds. Place your cuttings in a well-drained and aerated medium, such as 70% perlite and 30% fine bark or coarse sand and finely milled pine bark. Insert the cuttings in the multitrays with a space between each cutting to allow free air circulation and place them on the heated benches at 25ºC, under the intermittent mist. Regularly treat the cuttings with a fungicide to prevent fungal infections. Remove the dead leaves and wilting cuttings, until your cuttings are rooted. Move the rooted cuttings to the hardening-off house for about 2 weeks and then transfer the cuttings into small nursery pots or bags, using a soil mixture that is a well-drained acidic medium containing coarse sand and finely milled pine bark.

Place the seedlings or rooted cuttings under the shade net in the nursery until they are ready to be planted into the garden, after a period of 1 or 2 years. The net shade reduces the direct sun, which can dry out the soil in the plastic bags and can also prevent scorching.

Mulch the bed to keep the roots cool keep moisture to the soil and reduce the growth of weeds. A layer of about 5 mm thick is advised. Chipping mulch is much recommended as it breaks down very slowly and releases small amounts of nutrients to the plants. Shiny spiderhead does not need pruning, but a bit of pinching of the tips when the plants are still small, gives it a good shape and encourages branching. Serruria candicans is not infected with serious insect pests, but has a short lifespan in the garden.