Smooth Monterey Cypress Plant Care

Smooth Monterey Cypress (Hesperocyparis glabra) belongs to the Cupressaceae family within the Hesperocyparis genus. Smooth Monterey Cypress is native to the American Southwest, with a range stretching over the canyons and slopes in a somewhat wide vicinity around Sedona, Arizona. Smooth Monterey Cypress is also known as Tecate Cypress.

Smooth Monterey Cypress displays a pyramidal, conical tree growth habit, reaching up to 60 ft tall with a spread of approximately 20 ft. Smooth Monterey Cypress produces inconspicuous small cones.

Water a young or newly planted Smooth Monterey Cypress every 14–21 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.

Smooth Monterey Cypress thrives in full sun.

Hesperocyparis glabra tolerates temperatures of 0–100°F. Smooth Monterey Cypress prefers humidity levels of 30–70%.

Well-draining sandy soil with some organic matter. Good drainage is essential for Smooth Monterey Cypress to prevent waterlogging, which leads to root rot and fungal issues.

Choose a spot with full sun and well-draining sandy soil with some organic matter. Avoid low spots where water collects after rain.

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.

Smooth Monterey Cypress can spread to about 20 ft (6.1 m) and reach about 60 ft (18 m) tall. Space plants about 20 ft (6.1 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 Smooth Monterey Cypress 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.

Water deeply in late autumn before the ground freezes — evergreens keep losing water through their needles all winter, 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.

Smooth Monterey Cypress can be propagated through seeds, cuttings. Similar propagation techniques also apply to arizona cypress plant care, which shares the same genus.

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Smooth Monterey Cypress is susceptible to spider mites, bagworms, cypress canker. 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.