Acer davidii 'Rosalie'

RHS Plant Profile
Père David's maple 'Rosalie'

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Père David's maple 'Rosalie' visionspictures.com
Père David's maple 'Rosalie' visionspictures.com
Père David's maple 'Rosalie' visionspictures.com
Trees
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A deciduous tree, up to 10m high in 20 years, with young shoots tinted purple in winter, and olive green mature bark strongly streaked with white. Long, tapered leaves emerge glossy dark red and develop to green, before turning rich yellow in autumn. Pendent clusters of small yellow-green flowers are produced in spring, followed by winged seeds

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

8-12 metres

Max Spread

4-8 metres

Size

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

Growing Conditions

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

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–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
Sapindaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Columnar upright
Potentially harmful
Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus
Acer can be deciduous trees or large shrubs with paired, often palmately-lobed leaves and small flowers followed by characteristic winged fruits. Many have fine autumn colour, and some have ornamental stems
Name Status
Accepted

How to Grow

Cultivation

Grow in moisture-retentive, well-drained soil, in a sheltered position with protection from drying winds. Thrives in part shade, but will tolerate full sun if soil is reliably moist. Mulch in spring to improve moisture retention

Propagation

Propagate by softwood cuttings, layering or grafting

Suggested planting locations and garden types

  • Architectural
  • Low Maintenance

Pruning

Minimal pruning required; see pruning group 1. Prune from late autumn to mid-winter only

Pests

May be susceptible to aphids, leafhoppers, glasshouse red spider mite, scale insects, caterpillars and rose leaf-rolling sawfly, large rose sawfly. Also rabbits and deer can cause damage

Diseases

May be susceptible to Verticillium wilt, Acer leaf scorch and honey fungus