Hybrid Black Poplar prefers consistently moist soil, especially when young. Water deeply once or twice a week during dry spells, ensuring the soil doesn't become waterlogged.

Mature trees are more drought-tolerant but benefit from supplemental watering during prolonged dry periods. Reduce watering in cooler months.

Prune to shape young trees and remove dead, damaged, or crossing branches. Major structural pruning is best done during dormancy in late winter. Light shaping and removal of weak growth can be done in summer.

Avoid heavy pruning, as it can stimulate excessive water sprout growth.

Hybrid Black Poplar is typically propagated by cuttings. Take hardwood cuttings in late autumn or early winter from healthy, mature trees.

Cuttings should be 20-30 cm long and planted directly into well-drained soil or a propagation bed. Rooting is usually successful within one growing season.

Repotting is not typically applicable to Hybrid Black Poplars as they are large, fast-growing trees intended for outdoor planting. If grown in containers for extended periods (not recommended), select a very large container and repot into fresh, well-draining potting mix in early spring before significant growth begins.