Grow Crassula cultrata in a sunny or semi-shaded position, in well-drained soil. It is easy to grow, and is a low-maintenance, drought- and heat-tolerant plant, suitable for dry or water-wise fynbos gardens, karoo gardens, grassland gardens and rockeries. It also makes an attractive pot plant. It is a good groundcover or bedding plant when planted en masse, and looks good as a single plant or in small groups in a mixed bed or rockery. Plants in sunnier, open positions generally develop more red colour in their leaves, and a more rounded, bushier shape.

Propagate by cuttings taken at almost any time of the year. Place in sandy, well-drained soil in a cool position and keep moist – there is no need for misting or heated benches. Although seldom practiced because cuttings are so easy, this species can also be propagated by seeds. The seeds are very small, best collected in the mature seed capsules just before they open. Use a well-drained, sandy, sterile medium, mix the seeds with a handful of the dry medium and scatter lightly over the surface. Keep moist, well-ventilated and warm. Pot up the seedlings when they are large enough to handle.