Water regularly to keep the soil consistently moist, especially during dry periods. Avoid waterlogging, as this can lead to root rot.

Allow the top 2-3 cm of soil to dry out slightly between waterings for established plants. Reduce watering in winter when growth slows.

Pruning is generally not required for Daucus broteri, as it is an annual or biennial grown for its root. If grown for ornamental purposes and it becomes leggy, light trimming can encourage bushier growth.

Remove spent flower stalks to prevent unwanted self-seeding.

Daucus broteri is typically propagated by seed. Sow seeds directly into the garden in early spring or late autumn, as it prefers cooler temperatures for germination.

Seeds can also be started indoors a few weeks before the last frost and transplanted carefully.

Repotting is generally not applicable as Daucus broteri is often grown as an annual or biennial for harvest or direct sowing. If grown in containers and a larger pot is needed, transplant seedlings or young plants carefully into a larger container in spring before extensive root development.