Water Spergula pentandra regularly, keeping the soil consistently moist but not waterlogged, especially during its active growth period.

Allow the top centimeter of soil to dry out slightly between waterings to prevent root rot. Reduce watering in cooler months or when growth slows.

Pruning is generally not required for Spergula pentandra as it is a low-growing, often annual or short-lived perennial plant.

If it becomes leggy or untidy, light trimming can be done to maintain shape or encourage bushier growth. Remove any dead or damaged foliage.

Spergula pentandra is easily propagated by seeds sown directly into the garden bed in spring after the last frost, or started indoors a few weeks prior. It can also be propagated by cuttings taken from healthy stems in late spring or early summer.

Repotting is typically not necessary for Spergula pentandra, especially if grown as an annual. If grown in a container and it becomes root-bound, repot into a slightly larger container in spring.

Use a well-draining potting mix and handle the delicate root system with care.