Water Struthanthus marginatus moderately, allowing the soil to dry out slightly between waterings. Avoid waterlogging, as this can lead to root rot.

Reduce watering during the cooler, dormant months to prevent over-saturation.

Prune Struthanthus marginatus to maintain shape and size or to remove dead or damaged branches.

Light pruning can be done anytime, but heavier pruning is best performed in late winter or early spring before new growth begins. Use clean, sharp tools.

Propagation is typically done from semi-hardwood cuttings taken in summer or autumn. Root cuttings in a well-draining medium. Alternatively, air layering can be successful.

Patience is key for successful rooting and establishment.

Repot Struthanthus marginatus every 2-3 years, or when the plant becomes root-bound. Use a well-draining potting mix. Repotting is best done in spring before the active growing season commences. Handle the roots gently.