American Cranberry Plant Care

American Cranberry (Vaccinium erythrocarpum) belongs to the Ericaceae family within the Vaccinium genus. American Cranberry is native to the Southeastern United States. American Cranberry is also known as Mountain Cranberry, Small Cranberry, Large Cranberry.

American Cranberry displays a low spreading shrub growth habit, reaching up to 2 ft tall with a spread of approximately 3 ft. American Cranberry produces bell-shaped white or pink flowers.

Leaf size: approximately 2 inches.

Water a young or newly planted American Cranberry every 4–7 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

American Cranberry thrives in full sun to partial shade.

Vaccinium erythrocarpum tolerates temperatures of 50–80°F. American Cranberry prefers humidity levels of 40–70%.

Well-draining acidic soil mix with high organic content, such as peat moss and pine bark. Good drainage is essential for American Cranberry to prevent waterlogging, which leads to root rot and fungal issues.

Feed American Cranberry every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs 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 acidic soil mix with high organic content, such as peat moss and pine bark. Avoid low spots where water collects after rain.

American Cranberry is suited to USDA Zone 12a.

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

American Cranberry can spread to about 3 ft (0.9 m) and reach about 2 ft (1 m) tall. Space plants about 3 ft (0.9 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 plant spacing calculator.

Prune American Cranberry 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 shrub in one year.

American Cranberry 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.

American Cranberry can be propagated through softwood cuttings, layering, seeds. Similar propagation techniques also apply to cranberry plant care, which shares the same genus.

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American Cranberry is susceptible to spider mites, aphids, fruitworms. 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.

American Cranberry grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. American Cranberry is native to the Southeastern United States. In cooler regions, grow American Cranberry as a houseplant or bring it indoors before the first frost.