Water Spiny Starwort regularly during its active growth period, allowing the soil to dry out slightly between waterings. Reduce watering significantly in winter.

Avoid overwatering, as this can lead to root rot, especially in poorly draining soil. Ensure good drainage to prevent waterlogging.

Prune Spiny Starwort after flowering to maintain a tidy shape and encourage bushier growth. Remove spent flower stems to prevent self-seeding if desired.

Light pruning can be done in early spring to remove any dead or damaged stems before new growth begins.

Propagate Spiny Starwort from seeds sown in spring, either directly outdoors or in a seed tray. Seeds germinate best with light and warmth.

You can also take stem cuttings in late spring or early summer and root them in moist potting mix or perlite.

Repot Spiny Starwort if it becomes root-bound, typically every two to three years. The best time to repot is in early spring before new growth starts.

Use a well-draining potting mix and a slightly larger pot to accommodate root growth.