Liquidambar styraciflua 'Simone'

RHS Plant Profile
sweet gum 'Simone'

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Compact, deciduous tree that can reach a height of 6m, with an upright habit and a narrow, columnar crown. Maple-like, dark green, palmate leaves are 5-lobed and turn yellow-orange to red in autumn. Small yellow-green flowers appear in spring followed by spiky, brown fruits after flowering

Position

Full sun, Partial shade

Soil Types

Clay, Loam, Sand

Max Height

4-8 metres

Max Spread

4-8 metres

Size

Time to Maturity
10–20 years
Max Spread
4-8 metres
Max Height
4-8 metres

Growing Conditions

Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Neutral

Position

Full sun Partial shade
Aspect
East–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

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Hamamelidaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
Liquidambar are deciduous trees grown for their alternate, maple-like leaves which take on brilliant and long-lasting autumn colour; flowers and fruits are inconspicuous
Name Status
Unresolved

How to Grow

Cultivation

Grow in moist but well-drained, neutral to acid, moderately fertile soil, in full sun or partial shade. Suitable for woodlands or as a specimen tree. Full sun brings out the best autumn colour - see tree cultivation

Propagation

Propagate by semi-ripe cuttings

Suggested planting locations and garden types

  • Cottage and informal garden

Pruning

Pruning group 1

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus