They tend to spread sideways or trail and will rapidly fill an entire pot. Since roots are quite shallow, use a cactus mix or add extra perlite or pumice to regular soil potting soil. Water moderately through the summer, according to temperatures. Water more sparingly in winter. Fertilizing is unnecessary.
Propagation is easiest with stem cuttings.
Allow cuttings to dry a day before planting. Huernias can be increased from seeds planting in spring in moist, sandy peat moss. Barely cover seeds. Seeds germinate quickly. Huernia macrocarpa var.