Herniaria boissieri prefers well-drained soil and should be watered sparingly. Allow the soil to dry out completely between waterings to prevent root rot.

In hot, dry conditions, occasional light watering may be beneficial, but avoid overwatering, especially during cooler months.

Pruning is generally minimal for Herniaria boissieri, primarily focused on shaping or removing any dead or straggly growth. Light trimming can be done after flowering to maintain a compact form.

Avoid heavy pruning, as it can be slow to recover.

Propagation is best achieved through seed sowing in spring or through cuttings taken in late spring or early summer. Seeds can be sown in a well-draining mix and kept moist.

Cuttings should be treated with rooting hormone and planted in a similar medium.

Herniaria boissieri prefers to be slightly pot-bound and does not require frequent repotting. Repot only when the plant has clearly outgrown its container, typically every 2-3 years.

Use a gritty, well-draining compost mix. Repot in spring.