Acer rubrum 'Karpick'
red maple 'Karpick'
Fast-growing, narrowly upright tree about 15m tall and 6m wide, oval at maturity, with dense branches and 3-5 lobed, dark green, palmate leaves, grey-green beneath, turning brilliant orange-red and yellow in autumn. Produces upright clusters of tiny red flowers, followed by purple-brown winged fruits
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Size
Ultimate height
Higher than 12 metresTime to ultimate height
10–20 yearsUltimate spread
4–8 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Red | Green Grey Silver | ||
|---|---|---|---|---|
| Summer | Green Grey Silver | Purple Brown | ||
| Autumn | Orange Red Yellow | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Sapindaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy, 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 partial shade. See tree cultivation for further advice
Propagation
Propagate by seed (trees and shrubs), layering in autumn, grafting in late winter or softwood cuttings in early summer
Suggested planting locations and garden types
- Architectural
- Cottage and informal garden
- Wildlife gardens
Pruning
Pruning group 1, if necessary, from late autumn to midwinter only
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
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