Winged Oak Plant Care

Winged Oak (Oreomunnea pterocarpa) belongs to the Juglandaceae family within the Oreomunnea genus. Winged Oak is native to Costa Rica, southeastern Mexico (Chiapas), and Panama. Winged Oak is also known as Winged Walnut.

Winged Oak displays a tall, upright tree growth habit, reaching up to 30 ft tall with a spread of approximately 20 ft. Winged Oak produces inconspicuous greenish flowers.

Leaf size: approximately 12 inches.

Water a young or newly planted Winged Oak 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.

Winged Oak thrives in full sun to partial shade.

Oreomunnea pterocarpa tolerates temperatures of 60–80°F. Winged Oak prefers humidity levels of 40–70%.

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

Feed Winged Oak 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 full sun to partial shade and rich, well-draining soil with high organic content. Avoid low spots where water collects after rain.

Winged Oak is suited to USDA Zone 13a.

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.

Winged Oak can spread to about 20 ft (6.1 m) and reach about 30 ft (9 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 Winged Oak 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.

Winged Oak 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.

Winged Oak can be propagated through seeds, grafting. Similar propagation techniques also apply to mexican oak plant care, which shares the same genus.

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Winged Oak is susceptible to walnut caterpillars, walnut husk flies. 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.

Winged Oak grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Winged Oak is native to Costa Rica, southeastern Mexico (Chiapas), and Panama. In cooler regions, grow Winged Oak as a houseplant or bring it indoors before the first frost.