Indian Tree-Of-HeavenAilanthus excelsa

Ailanthus excelsa prefers moderate watering. Allow the top 2-3 cm of soil to dry out between waterings. In hotter, drier periods, increase frequency.

Ensure good drainage to prevent root rot, as this species can be somewhat drought-tolerant once established.

Prune Ailanthus excelsa primarily for shape, structure, and to remove dead or crossing branches. This can be done in late winter or early spring before new growth begins.

It tolerates heavy pruning well, but aim for selective removal to maintain its natural form and vigor.

Propagation is typically done from seeds sown in spring. Germination can be erratic, so a warm, moist environment is beneficial. Cuttings can also be taken from semi-hardwood in summer.

This species also readily reproduces via root suckers.

Repot young Ailanthus excelsa plants every 1-2 years in spring as needed, or when root-bound. Use a well-draining potting mix.

Mature trees are generally not repotted and are best planted directly into the ground where they can establish a robust root system.