Mastixia macrocarpa Plant Care

Mastixia macrocarpa (Mastixia macrocarpa) belongs to the Nyssaceae family within the Mastixia genus.

Mastixia macrocarpa displays a slow-growing small tree growth habit, reaching up to 10 ft tall with a spread of approximately 6 ft. Mastixia macrocarpa produces small inconspicuous flowers.

Leaf size: approximately 4 inches.

Water a young or newly planted Mastixia macrocarpa every 7–14 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.

Mastixia macrocarpa thrives in bright indirect light. Avoid placing Mastixia macrocarpa in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Mastixia macrocarpa tolerates temperatures of 65–80°F. Mastixia macrocarpa prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Rich, well-draining soil with high organic content. Good drainage is essential for Mastixia macrocarpa to prevent waterlogging, which leads to root rot and fungal issues.

Feed Mastixia macrocarpa every 6 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 bright indirect light and rich, well-draining soil with high organic content. Avoid low spots where water collects after rain.

Mastixia macrocarpa is suited to USDA Zone 13b.

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.

Mastixia macrocarpa can spread to about 6 ft (1.8 m) and reach about 10 ft (3 m) tall. Space plants about 6 ft (1.8 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 Mastixia macrocarpa 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.

Mastixia macrocarpa is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Mastixia macrocarpa can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to mastixia plant care, which shares the same genus.

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Mastixia macrocarpa is susceptible to aphids, scale insects, spider mites. 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.

Mastixia macrocarpa grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. In cooler regions, grow Mastixia macrocarpa as a houseplant or bring it indoors before the first frost.