Bristol Mountain Rowan Plant Care

Bristol Mountain Rowan (Karpatiosorbus bristoliensis) belongs to the Rosaceae family within the Karpatiosorbus genus. Bristol Mountain Rowan is native to Great Britain, growing wild only in the Avon Gorge and in the Leigh Woods area of Bristol.

Bristol Mountain Rowan displays a small to medium-sized deciduous tree growth habit, reaching up to 20 ft tall with a spread of approximately 15 ft. Bristol Mountain Rowan produces clusters of white or pink blossoms in spring.

Leaf size: approximately 5 inches.

Water a young or newly planted Bristol Mountain Rowan every 7–10 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.

Bristol Mountain Rowan thrives in full sun to partial shade.

Karpatiosorbus bristoliensis tolerates temperatures of 40–90°F. Bristol Mountain Rowan prefers humidity levels of 40–70%.

Rich, well-draining loamy soil with added organic matter. Good drainage is essential for Bristol Mountain Rowan to prevent waterlogging, which leads to root rot and fungal issues.

Feed Bristol Mountain Rowan 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 loamy soil with added organic matter. Avoid low spots where water collects after rain.

Bristol Mountain Rowan is suited to USDA Zone 6a – 8b.

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.

Bristol Mountain Rowan can spread to about 15 ft (4.6 m) and reach about 20 ft (6 m) tall. Space plants about 15 ft (4.6 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 Bristol Mountain Rowan 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.

Bristol Mountain Rowan is hardy down to USDA zone 6a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, 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.

Bristol Mountain Rowan can be propagated through seeds, hardwood cuttings. Similar propagation techniques also apply to carpathian rowan plant care, which shares the same genus.

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Bristol Mountain Rowan is susceptible to aphids, caterpillars, 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.

Bristol Mountain Rowan grows outdoors in USDA Zone 6a – 8b. It survives winters down to planting zone 6a. Bristol Mountain Rowan is native to Great Britain, growing wild only in the Avon Gorge and in the Leigh Woods area of Bristol.