Water regularly, especially during dry periods, but avoid waterlogged soil. Allow the top 2-3 cm of soil to dry out between waterings. Reduce watering in winter when the plant is dormant.

Ensure good drainage to prevent root rot.

Deadhead spent flowers to encourage continuous blooming and prevent self-seeding if not desired. Light pruning after flowering can help maintain a tidy appearance.

Remove any dead or damaged foliage as needed to improve air circulation and plant health.

Easily grown from seeds sown directly outdoors in early spring or fall. Seeds can also be started indoors 4-6 weeks before the last frost.

Division of established clumps in spring or fall is another method, though less common for this species.

Silene conica is often grown as an annual or short-lived perennial and typically does not require frequent repotting. If grown in containers, repot every 1-2 years in spring into a slightly larger pot with fresh, well-draining potting mix.