Water Arenaria algarbiensis sparingly once the soil has dried out. It prefers to be on the drier side and is susceptible to root rot if overwatered.

Ensure excellent drainage and allow the soil to dry completely between waterings, especially during winter dormancy.

Prune Arenaria algarbiensis lightly after flowering to maintain a tidy shape and encourage denser growth. Remove any dead or damaged stems at any time.

Light trimming can also help prevent it from becoming leggy and sprawling, especially in warmer climates.

Propagate Arenaria algarbiensis from seeds sown in spring, or from stem cuttings taken in late spring or early summer. Seeds may require stratification.

Cuttings should be rooted in a well-draining medium in a warm environment with good humidity.

Repot Arenaria algarbiensis only when necessary, typically every 2-3 years, or when the plant becomes root-bound. Use a well-draining potting mix, such as a cactus or succulent blend.

Repot in spring before new growth begins to avoid disturbing the root system.