Shallon prefers consistently moist soil, mimicking its native damp forest floor. Water deeply when the top 2-3 cm of soil begins to dry out. Avoid waterlogged conditions, which can lead to root rot.

Reduced watering may be acceptable during cooler winter months.

Prune Gaultheria shallon primarily to maintain shape or remove dead, damaged, or crossing branches. Light pruning can be done after flowering.

For rejuvenation, heavier pruning can be undertaken in late winter before new growth begins, but this may reduce flowering for that season.

Propagation is typically done by semi-hardwood cuttings taken in summer or by division of established clumps in early spring. Layering is also an effective method.

Seeds can be sown in autumn, requiring a period of cold stratification for germination.

Repot Gaultheria shallon when it becomes root-bound, usually every 2-3 years. Use a well-draining, acidic potting mix. Handle the root ball gently to avoid damage.

Repotting is best done in early spring before active growth commences.