Water regularly once the soil has dried out. Ensure good drainage to prevent waterlogging, as this plant is susceptible to root rot. Allow the top inch of soil to dry between waterings, especially during warmer months.

Prune after flowering to maintain a tidy shape and prevent excessive self-seeding. Remove spent flower stalks to encourage further blooming and to direct the plant's energy.

Light trimming can also be done to control size.

Propagate from seeds sown in autumn or early spring. Fresh seeds can be sown directly into well-drained soil outdoors. Division of established clumps in spring is also a successful method for increasing plant numbers.

Repotting is generally not required for Cynoglossum lanceolatum as it is a short-lived perennial or biennial. If grown in a container, repot only when root-bound, typically every 1-2 years, in early spring.