Angelica aliensis prefers consistently moist soil but dislikes waterlogged conditions. Water deeply when the top 2-3 cm of soil feels dry. Reduce watering slightly in cooler months.

Ensure good drainage to prevent root rot, especially during winter dormancy.

Prune Angelica aliensis after flowering to prevent self-seeding if desired, or to maintain a tidy appearance. Remove dead or damaged stems at any time.

Cut back spent flower stalks to encourage a second flush of blooms or to direct energy into plant development.

Propagate Angelica aliensis by seed, sown fresh in autumn or spring in a cool, moist environment. It can also be propagated by division of established clumps in early spring.

Transplant seedlings or divisions carefully to avoid disturbing the root system.

Repot young Angelica aliensis plants annually or biennially in early spring before active growth begins. Choose a pot that is only slightly larger than the current one, ensuring adequate drainage holes.

Use a well-draining, fertile potting mix.