Acer platanoides 'Crimson Sentry'

RHS Plant Profile
Norway maple 'Crimson Sentry'
Plants for pollinators
Trees

A narrowly upright tree, ultimately 12m high and 5m across, with large, five-lobed, scallop-edged, very dark red-purple leaves. Clusters of small, yellow flowers tinged dark red in spring are followed by dark red and green, winged fruit in autumn

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 or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H7

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
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 fertile, moist but well-drained soil in sun or semi-shade

Propagation

Propagate by grafting

Suggested planting locations and garden types

  • Architectural
  • Cottage and informal garden
  • Wildlife gardens
  • Low Maintenance

Pruning

Pruning group 1

Pests

May be susceptible to Acer gall mite, aphids, caterpillars and horse chestnut scale

Diseases

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