Tecate Cypress prefers infrequent watering, especially once established. Water deeply when the top few centimeters of soil feel dry. Avoid overwatering, as this can lead to root rot.

Reduce watering significantly during cooler, dormant months to prevent waterlogged roots.

Prune Hesperocyparis forbesii primarily to shape the tree or remove dead, damaged, or crossing branches. Minimal pruning is usually best to maintain its natural form.

Perform pruning in late winter or early spring before the active growing season begins.

Propagation is typically done through seeds or cuttings. Seeds require stratification to break dormancy; sow in a well-draining mix.

Cuttings taken from semi-hardwood in summer or hardwood in winter can be rooted in a humid environment with rooting hormone.

Repotting is rarely necessary for mature Tecate Cypress as they are slow-growing and prefer to be slightly root-bound. If repotting is needed for young plants, do so in early spring before new growth emerges.

Use a gritty, well-draining potting mix.