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Quercus palustris AGM

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© RHS

Characteristics

Plant type

Tree

Habit

Bushy

Resilience

Hardiness

H6 (hardy - very cold winter)

Colour

Flower

Green and Yellow in Spring

Foliage

Brown and Red in Autumn

Fruit

Brown in Autumn

Size

Ultimate height

Higher than 12 metres

Ultimate spread

wider than 8 metres

Time to ultimate height

more than 50 years


Preferred common name

pin oak

Family

Fagaceae


Quercus can be deciduous or evergreen trees or shrubs, with entire, lobed or toothed leaves; flowers inconspicuous, followed by characteristic acorns; sometimes good autumn colour

Q. palustris is a strong-growing large deciduous tree with a dense, slightly pendulous crown. Deeply lobed eaves to 15cm, with whisker-tipped teeth, turn reddish-brown or bright crimson in autumn

Other common names

  • swamp Spanish oak

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • South-facing, North-facing, West-facing or East-facing
  • Exposed or Sheltered

Cultivation

Grow in deep, fertile, well-drained soil. A fast growing spreading deciduous tree. Requires lime free soil

Soil

  • Well-drained or Moist but well-drained
  • Acid or Neutral
  • Sand, Clay or Loam

Propagation

Propagate by seed, sowing as soon as ripe, in a coldframe or grafting in mid-autumn or early winter

Suggested planting locations and garden types

Cottage/Informal Garden or Flower borders and beds


How to care

Pruning

Pruning group 1

Pests

May be attacked by aphids and gall wasps

Diseases

May be subject to oak wilt and powdery mildews