Water Masson's pine thoroughly when the top 5-10 cm of soil feels dry. Reduce watering in winter to prevent waterlogged roots. Ensure good drainage, as this species is sensitive to overwatering.

Allow the soil to dry out slightly between waterings, especially for mature trees.

Prune Masson's pine to shape the tree or remove dead, diseased, or crossing branches. The best time for major pruning is late winter or early spring before new growth begins.

Light pruning can be done throughout the growing season to maintain desired form.

Propagation of Masson's pine is typically done from seed. Seeds require stratification (a period of cold, moist treatment) to break dormancy. Sow seeds in well-draining soil in spring.

Cuttings are difficult to root and are not a common method for this species.

Repot young Masson's pine trees every 2-3 years in early spring before new growth emerges. Mature trees rarely need repotting. Use a well-draining potting mix.

Prune the root ball by about one-third, focusing on circling roots, to encourage healthier growth.