Rowan

Sun

Full sun or light partial shade; flowering, fruiting and autumn colour are usually best in sun.

Water

Moderate; keep young trees evenly moist and water established trees during prolonged dry spells.

Soil

Moist but well-drained soil, preferably slightly acidic to neutral; tolerates several soil types but dislikes compacted, persistently wet ground.

Height

20-40 ft (6-12 m)

Spread

15-25 ft (4.5-7.5 m)

Flowers

Late spring to early summer; flat clusters of small creamy-white flowers.

Foliage

Pinnate leaves with narrow, toothed leaflets; green in summer, turning yellow, orange or red in autumn.

Growth

Moderate

Care needed

Medium

• Plant during the dormant season when the ground is workable, keeping the root flare at soil level.
• Water deeply during dry weather for the first two growing seasons; avoid frequent shallow watering.
• Apply 2-3 in (5-8 cm) of organic mulch over the root area, leaving a clear gap around the trunk.
• Avoid routine high-nitrogen feeding; use a modest general-purpose feed in spring only if growth is weak and soil fertility is poor.
• Stake only if the rootball moves in wind, use flexible ties and remove the stake once the tree is stable.

Pruning. Prune lightly in late winter while dormant, removing dead, damaged or crossing branches and retaining a balanced framework. Avoid topping or heavy crown reduction; remove suspected fire-blight damage in dry weather and disinfect tools between cuts.

Late autumn

Plant bare-root trees after leaf fall, provided the soil is neither frozen nor waterlogged.

Late winter

Check branch structure and remove dead, damaged or rubbing growth.

Spring

Refresh mulch, check ties and water newly planted trees as growth begins.

Late spring

Check new shoots for aphids and blackened, wilting tips that may indicate fire blight.

Summer

Water deeply during prolonged dry spells, especially while the tree is establishing.

Autumn

Leave berry clusters for birds; remove unwanted seedlings before they become woody.

• Use as a small specimen tree in a lawn or mixed border, allowing space for its mature crown.
• Plant at a woodland edge with ferns, foxgloves and other plants that tolerate light shade.
• Include in a wildlife hedge or informal tree group for flowers, berries and autumn colour.
• Combine with ornamental grasses and late-flowering perennials for an autumn-focused planting.

Garden styles it suits: Woodland, Wildlife garden, Cottage garden, Scandinavian, Autumn colour and Mountain lodge.

Plant it with: Soft shield fern, Hardy geranium, Foxglove, Wood anemone, Autumn moor grass and Japanese anemone.

Wildlife: Flowers provide pollen and nectar for insects. Thrushes, waxwings and other fruit-eating birds feed on the berries and disperse the seeds; the foliage also supports insect larvae within its native range.

• Fire blight: flowers and shoots blacken and wilt, sometimes with hooked tips. Cut affected shoots well back into healthy wood in dry weather, disinfect tools between cuts and avoid excessive nitrogen feeding.
• Cankers: sunken or dead patches develop on branches or the trunk. Remove affected branches where practical, prevent bark injuries and seek an arborist's advice if the main trunk is affected.
• Aphids: colonies distort young leaves and leave sticky honeydew. Tolerate light infestations, encourage predators and wash accessible colonies off with water.
• Heat and drought stress: leaves scorch or drop early, and stressed trees become more vulnerable to pests. Mulch and water deeply; choose another species where summers are consistently hot and dry.

Not generally classed as toxic to cats, dogs or horses. Raw berries can cause stomach upset in people, especially in quantity; cooking reduces the irritating parasorbic acid. Seeds contain cyanogenic compounds, so do not deliberately chew or eat them. Do not encourage pets or children to eat raw fruit.

Where it spreads. Bird-dispersed seedlings can invade woodland and disturbed ground outside its native range. It is considered invasive in parts of the Pacific Northwest of North America, including Washington, Oregon and coastal British Columbia; check local guidance before planting near natural areas.

• American mountain ash (Sorbus americana)

  Very similar, but usually has narrower, more sharply pointed leaflets that are largely hairless beneath; rowan often has hairs beneath young leaves, especially along the midribs.

• Common ash (Fraxinus excelsior)

  Has opposite leaves and conspicuous black buds, followed by winged seeds rather than berries. Rowan has alternate leaves and orange-red fruit.

• Rowan-leaved false spirea (Sorbaria sorbifolia)

  Forms a suckering shrub with upright, feathery flower plumes rather than a tree with flat flower clusters and fleshy berries.

The species name aucuparia comes from Latin words associated with bird-catching, referring to the traditional use of its berries as bait.

Propagation. Grow the species from cleaned seed sown outdoors in autumn, protected from rodents; germination can be delayed until the second spring because seed dormancy is complex. Named cultivars are usually grafted or budded to preserve their characteristics.

Accepted botanical name

Sorbus aucuparia

In the US and Canada

Introduced in Alaska, Canada, the lower 48 states and St. Pierre and Miquelon.

Native range

Albania, Altay, Amur, Austria, Baltic States, Belarus, Belgium, Bulgaria, Buryatiya, Central European Rus, China North-Central and Corse.

Measured

Soil pH 5.5 to 7.5. Average height 620 cm.

Sources: GBIF (CC BY 4.0), USDA PLANTS and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.