Anthoxanthum amarum prefers consistently moist soil, especially during its active growing season. Avoid allowing the soil to dry out completely, but also ensure good drainage to prevent waterlogging.

Water thoroughly when the top inch of soil feels dry to the touch.

Pruning is typically minimal. After flowering, spent flower stalks can be trimmed back to maintain a tidy appearance.

If the plant becomes leggy or overgrown, light shaping can be done in late winter or early spring before new growth emerges.

Anthoxanthum amarum can be propagated by division of established clumps in early spring. Carefully separate the root ball into smaller sections, ensuring each section has healthy roots and shoots.

Replant divisions immediately into well-draining soil.

Repotting is usually only necessary when the plant becomes root-bound, typically every 2-3 years. Choose a pot that is slightly larger than the current one.

Repot in early spring before new growth begins, using a well-draining potting mix.