Water tree privet regularly, especially during dry periods, ensuring the soil dries slightly between waterings. Avoid waterlogging, as this can lead to root rot.

Once established, it shows good drought tolerance but benefits from occasional deep watering during prolonged dry spells.

Prune tree privet in late winter or early spring before new growth begins to maintain shape and remove dead or damaged branches. Light trimming can be done after flowering to tidy up the plant.

Heavy pruning can be done to rejuvenate old plants.

Propagate tree privet from semi-hardwood cuttings taken in late summer or autumn. Root cuttings in a well-draining potting mix in a propagator or humid environment.

Alternatively, it can be grown from seed sown in autumn or spring.

Repot young tree privets annually or as needed into slightly larger containers. For mature plants, repot every 2-3 years in spring. Use a good quality, well-draining potting mix.

This helps to refresh the soil and provide new nutrients for growth.