Water Alchornea alnifolia regularly, especially during dry periods, to keep the soil consistently moist but not waterlogged. Allow the top few centimeters of soil to dry out between waterings once established.

Reduce watering slightly in winter when growth slows down.

Prune Alchornea alnifolia in late winter or early spring before new growth begins. Remove any dead, damaged, or crossing branches to maintain a healthy structure and shape.

Light pruning can be done after flowering to encourage bushier growth.

Propagate Alchornea alnifolia from semi-hardwood cuttings taken in summer or hardwood cuttings taken in autumn. Root cuttings in a well-draining medium under humid conditions.

Alternatively, seeds can be sown in spring after a period of stratification.

Repot Alchornea alnifolia every 2-3 years, or when the plant becomes root-bound. Use a good quality, well-draining potting mix.

Repot in spring before the growing season begins to minimize transplant shock and allow roots to establish.