Mountain Mahogany Plant Care

Mountain Mahogany (Cercocarpus montanus) belongs to the Rosaceae family within the Cercocarpus genus. Mountain Mahogany is native to northern Mexico and the western United States. Mountain Mahogany is also known as Smooth Mountain Mahogany.

Mountain Mahogany displays a small tree or large shrub growth habit, reaching up to 15 ft tall with a spread of approximately 10 ft. Mountain Mahogany produces small, inconspicuous flowers in clusters.

Leaf size: approximately 3 inches.

Water a young or newly planted Mountain Mahogany every 10–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established trees mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Mountain Mahogany thrives in full sun to partial shade.

Cercocarpus montanus tolerates temperatures of 50–85°F. Mountain Mahogany prefers humidity levels of 30–60%.

Well-draining sandy soil with good organic content. Good drainage is essential for Mountain Mahogany to prevent waterlogging, which leads to root rot and fungal issues.

Feed Mountain Mahogany every 8 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established trees in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

The PlantoScan app can remind you when to water and when to fertilize each plant.

Choose a spot with full sun to partial shade and well-draining sandy soil with good organic content. Avoid low spots where water collects after rain.

Mountain Mahogany is suited to USDA Zone 4a – 8b.

Plant container-grown or balled-and-burlapped trees in spring or early autumn, setting the root flare at soil level, and water well after planting.

Mountain Mahogany can spread to about 10 ft (3 m) and reach about 15 ft (5 m) tall. Space plants about 10 ft (3 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the tree spacing calculator.

Prune Mountain Mahogany while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the tree in one year.

Mountain Mahogany is hardy down to USDA zone 4a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.

Young and container-grown trees need extra protection: roots in a pot freeze much more easily than roots in the ground.

Mountain Mahogany can be propagated through seeds, hardwood cuttings. Similar propagation techniques also apply to california mountain mahogany plant care, which shares the same genus.

See all plants toxic to cats and plants toxic to dogs.

Mountain Mahogany is susceptible to aphids, spider mites, scale insects. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

Mountain Mahogany grows outdoors in USDA Zone 4a – 8b. It survives winters down to planting zone 4a. Mountain Mahogany is native to northern Mexico and the western United States.