Water moderately during the growing season, allowing the soil to dry slightly between waterings. Reduce watering significantly in winter, providing just enough to prevent the soil from becoming completely parched.

Ensure good drainage to avoid waterlogged roots, which can lead to root rot.

Pruning is generally not required for Polycarpon polycarpoides. If desired for shaping or to remove any dead or damaged foliage, light trimming can be done. This is best performed in spring before active growth begins.

Propagation is typically done by seeds, which can be sown in spring or autumn. For vegetative propagation, cuttings can be taken from healthy stems in late spring or early summer.

Rooting hormone can aid in successful propagation.

Repot Polycarpon polycarpoides when the plant becomes root-bound, usually every two to three years. The best time for repotting is in spring, just as new growth begins. Use a well-draining potting mix.