Tripleurospermum caucasicum prefers consistently moist soil during its growing season but can tolerate some drought once established. Water thoroughly when the top 2-3 cm of soil feels dry.

Avoid waterlogging, which can lead to root rot. Reduce watering in winter when the plant is dormant.

Prune after flowering to encourage a bushier habit and to prevent self-seeding. Cut back spent flower stems by about one-third to one-half of their length.

Regular deadheading throughout the blooming season will prolong flowering. Light trimming can be done to maintain shape.

Propagation is best done by sowing seeds in spring or autumn. Seeds can be sown directly into the garden or started indoors a few weeks before the last frost.

Division of established clumps in spring or early autumn is also an effective method for propagation.

As Tripleurospermum caucasicum is often grown as an annual or short-lived perennial, repotting is typically only necessary if growing in containers.

If a container plant becomes root-bound, repot into a slightly larger container in spring using well-draining potting mix. Otherwise, it thrives when planted directly into the ground.