Water coastal sand frostweed regularly, especially during its establishment phase and dry periods. Allow the soil to dry out slightly between waterings to prevent root rot.

Drought tolerant once established, but consistent moisture promotes better flowering and growth.

Prune coastal sand frostweed in late winter or early spring before new growth begins. Remove any dead, damaged, or crossing branches to maintain a tidy shape and encourage vigorous new growth.

Light pruning after flowering can also help prolong the blooming period.

Propagate coastal sand frostweed from seeds or stem cuttings. Sow seeds in spring, either indoors or directly outdoors after the last frost.

Take cuttings in late spring or early summer, dip them in rooting hormone, and plant in well-draining soil.

Repot young plants if they become root-bound, typically every 1-2 years. Choose a pot with drainage holes and use a well-draining potting mix, such as a sandy loam or cactus mix.

Repot in spring before active growth begins.