Quercus palustris Green Pillar ('Pringreen')
pin oak [Green Pillar]
A deciduous, columnar tree with a strong central leader and verticle side branches, spreading slightly with age. The leaves are 15cm long, glossy, deeply lobed, green in spring and summer and turning scarlet to reddish brown in autumn.
Size
Ultimate height
Higher than 12 metresTime to ultimate height
more than 50 yearsUltimate spread
2.5–4 metresGrowing conditions
Moisture
Moist but well–drained, Poorly–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Yellow | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Brown Red | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed Hardiness
H6Botanical details
- Family
- Fagaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Columnar upright
- Potentially harmful
- Pets (dogs): Harmful if eaten - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
- Genus
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
- Name status
Trade
How to grow
Cultivation
This tall, narrow deciduous tree will grow in most deep well-drained acid to neutral soils but will not tolerate chalk or limestone. This tree is ideal for planting in avenues or as a street tree.
Propagation
Propagate by seed, sowing as soon as ripe, in a cold frame but may not come true to type. Grafting can be carried out in mid-autumn or early winter
Suggested planting locations and garden types
- Architectural
- City and courtyard gardens
Pruning
Pests
May be susceptible to gall wasps and aphids
Diseases
May be susceptible to powdery mildews and honey fungus
Get involved
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