Oregon Grape Plant Care

Oregon Grape (Berberis aquifolium) belongs to the Berberidaceae family within the Berberis genus. Oregon Grape is native to Western North America, including regions such as British Columbia, Washington, and Oregon.. Oregon Grape is also known as Hollyleaf Barberry, Mountain Grape.

Oregon Grape displays an upright, dense shrub growth habit, reaching up to 6 ft tall with a spread of approximately 4 ft. Oregon Grape produces small yellow flowers in clusters.

Leaf size: approximately 3 inches.

Water a young or newly planted Oregon Grape 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.

Oregon Grape thrives in full sun to partial shade.

Berberis aquifolium tolerates temperatures of 50–80°F. Oregon Grape prefers humidity levels of 40–70%.

Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Oregon Grape to prevent waterlogging, which leads to root rot and fungal issues.

Feed Oregon Grape 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 well-draining loamy soil with added compost for nutrients. Avoid low spots where water collects after rain.

Oregon Grape is suited to USDA Zone 12a.

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.

Oregon Grape can spread to about 4 ft (1.2 m) and reach about 6 ft (2 m) tall. Space plants about 4 ft (1.2 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 Oregon Grape 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.

Oregon Grape is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Oregon Grape can be propagated through seeds, softwood cuttings.

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

Oregon Grape 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.

Oregon Grape grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Oregon Grape is native to Western North America, including regions such as British Columbia, Washington, and Oregon.. In cooler regions, grow Oregon Grape as a houseplant or bring it indoors before the first frost.