Stewartia monadelpha

RHS Plant Profile

orangebark stewartia

Other common names

tall stewartia

Trees

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A broadly columnar, conical deciduous tree, with peeling grey,red and brown bark. Glossy green leaves change to excellent autumn colours of red, purple and yellow. Creamy- white flowers and violet purple anthers are produced in summer.

Position

Full sun, Partial shade

Soil Types

Clay, Loam, Sand

Max Height

Higher than 12 metres

Max Spread

4-8 metres

Size

Time to Maturity: 10–20 years
Max Spread: 4-8 metres
Max Height: Higher than 12 metres

Growing Conditions

Clay Loam Sand

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

Position

Full sun Partial shade

Aspect: South–facing or West–facing or East–facing
Exposure: 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): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Theaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Genus: Stewartia are deciduous trees or shrubs, often with attractive peeling bark, ovate leaves and showy white flowers; good autumn colour
Name Status: Correct
Plant Range: Japan

How to Grow

Cultivation

Grow in moist but well drained humus rich,neutral to acid soil. In full sun or dappled shade. Shelter from strong winds.

Propagation

Propagate by sowing seed in a cold frame in autumn. Also layering,softwood cuttings and semi-ripe cuttings

Suggested planting locations and garden types

Cottage and informal garden
Architectural
Low Maintenance

Pruning

Pruning group 1. Little or no pruning

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus in gardens where it is present but insufficient data to determine degree of susceptibility