Mahonia 'Winter Sun'

RHS Plant Profile
Oregon grape 'Winter Sun'

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Oregon grape 'Winter Sun' RHS 2003
Oregon grape 'Winter Sun' Dorling Kindersley Ltd
Oregon grape 'Winter Sun' Dorling Kindersley Ltd

Synonyms

Mahonia × wagneri 'Winter Sun'
Mahonia 'Winter Sun'

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Shrubs
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A compact evergreen shrub of upright growth to 3m tall, with long, spiny, pinnate dark green leaves. Flowers small, bright yellow, fragrant, in densely clustered arching racemes, followed by blue-black berries

Position

Full shade, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

2.5-4 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity
10–20 years
Max Spread
1.5-2.5 metres
Max Height
2.5-4 metres

Growing Conditions

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

Position

Full shade Partial shade
Aspect
East–facing or South–facing or North–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)
H5

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Berberidaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Potentially harmful
Berries are ornamentalnot to be eaten. Wear gloves and other protective equipment when handling
Genus
Mahonia are evergreen shrubs with leathery, pinnate leaves which are often spine-toothed, and clustered racemes of sometimes fragrant yellow flowers, sometimes followed by black or purple berries
Name Status
Accepted

How to Grow

Cultivation

Good for a woodland setting in a sheltered or exposed situation with full sun or partial shade. See mahonia cultivation

Propagation

Propagate by semi-ripe cuttings

Suggested planting locations and garden types

  • Cottage and informal garden
  • Wildlife gardens
  • Low Maintenance
  • Flower borders and beds

Pruning

Pruning group 8

Pests

Generally pest-free

Diseases

Generally disease -free