Keep the soil consistently moist but not waterlogged, especially during the growing season. Water thoroughly when the top centimeter of soil feels dry.

Reduce watering in winter, allowing the soil to dry out slightly between waterings to prevent root rot.

Pruning is generally not required for Gentiana pneumonanthe. Dead or faded flower stems can be removed at the end of the flowering season to maintain tidiness and prevent self-seeding if unwanted.

Avoid cutting back the foliage too severely.

Propagation is best done by seed sown in autumn or spring. Stratification may improve germination. Division of established clumps can be attempted in early spring, but this species can be sensitive to root disturbance.

Repotting is rarely necessary for established plants. If growing in a container, repot every 2-3 years in early spring into a slightly larger pot using a well-draining, lean compost mix.

Ensure the root ball is disturbed as little as possible.