Water Helenium aromaticum regularly, keeping the soil consistently moist but not waterlogged. Allow the top few centimeters of soil to dry out slightly between waterings, especially during dry periods.

Reduce watering in winter when the plant is dormant.

Deadhead spent flowers to encourage reblooming and maintain a tidy appearance. Cut back the entire plant to the ground in late autumn or early spring to remove dead foliage and stimulate new growth.

This also helps prevent self-seeding.

Propagate Helenium aromaticum by division in early spring. Carefully dig up clumps and separate them into smaller sections, ensuring each piece has roots and at least one growth bud.

Replant immediately into prepared soil.

Repotting is generally not necessary for Helenium aromaticum as it is a perennial grown for its ornamental value. If container-grown, repot every 2-3 years in spring into a slightly larger pot with fresh potting mix to refresh the soil and provide more space.