Sorbus ulleungensis

RHS Plant Profile

Ulleung rowan

Trees

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Position

Full sun, Partial shade

Size

Time to Maturity: 20–50 years

Growing Conditions

Moisture: Moist but well–drained or Well–drained
pH: Acid or Neutral

Position

Full sun Partial shade

Aspect: East–facing or North–facing or South–facing or West–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H6

Botanical Details

Family: Rosaceae
Native to GB/Ireland: No
Foliage: Deciduous
Genus: Sorbus can be deciduous trees or shrubs with simple or pinnate leaves and clusters of small white or pink flowers, followed by white, yellow, pink, red or brown berries; some have fine autumn colour
Name Status: Correct
Plant Range: South Korea

How to Grow

Cultivation

Grow in moderately fertile, humus-rich, moist but well-drained soil in sun or light dappled shade; will grow in a wide range of soils but prefers acidic or neutral soil. See tree cultivation for further advice

Propagation

Propagate by seed, softwood cuttings or grafting

Pruning

pruning group 1

Pests

May be susceptible to aphids, scale insects, pear blister mite, red spider mite and sawfly larvae

Diseases

May be susceptible to a canker, silver leaf, honey fungus and fireblight