Water Japanese Quince regularly, especially during dry spells, ensuring the soil remains consistently moist but not waterlogged. Reduce watering in winter when the plant is dormant.

Good drainage is crucial to prevent root rot, so adjust frequency based on soil type and local climate conditions.

Prune Japanese Quince after flowering to maintain shape and encourage bushiness. Remove dead, damaged, or crossing branches.

Hard pruning can be done in late winter or early spring before bud break to rejuvenate older plants. Thin out the center to improve air circulation.

Japanese Quince can be propagated by hardwood cuttings taken in late autumn or early winter. Root cuttings are also effective. Alternatively, seeds can be sown in autumn, though they may require stratification.

Layering in spring is another successful method.

Repot container-grown Japanese Quince every 2-3 years, typically in late winter or early spring before growth begins. Use a well-draining potting mix. Prune back the roots slightly to encourage new growth.

Ensure the new pot is only slightly larger than the previous one.