Quercus phellos
Willow oak
Quercus Quercus
Q. phellos - Q. phellos is a large deciduous tree forming a dense oblong crown of simple long leaves and inconspicuous yellow-green catkins in spring followed by small acorns.
Quercus phellos is: Deciduous
Ingestion may cause severe discomfort.
RHS AGM (Award of Garden Merit)
Yellow-green in Spring
Dark-green in Summer
Generally pest free
Leaf mining moths , Aphids , Caterpillars , Oak gall wasps Leaf mining moths , Aphids , Caterpillars , Oak gall wasps
Also suffers from oak wilt in North America only.
Oak galls , Powdery mildew Oak galls , Powdery mildew
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Quercus phellos (Willow oak) will reach a height of 15m and a spread of 12m after 20-50 Years.
Low Maintenance, Wildlife, Architectural, Specimen tree
Plant in deep, fertile, well-drained soil. Will tolerate lime.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral
Partial Shade, Full Shade
North, South, East, West
Exposed, Sheltered
Hardy (H4)
We do not currently have companion plants added for this plant.
Quercus phellos
Willow oak
Quercus Quercus
Q. phellos - Q. phellos is a large deciduous tree forming a dense oblong crown of simple long leaves and inconspicuous yellow-green catkins in spring followed by small acorns.
Deciduous
Ingestion may cause severe discomfort.
RHS AGM (Award of Garden Merit)
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Yellow-green in Spring
Dark-green in Summer
Generally pest free
Leaf mining moths , Aphids , Caterpillars , Oak gall wasps
Also suffers from oak wilt in North America only.
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Quercus phellos (Willow oak) will reach a height of 15m and a spread of 12m after 20-50 Years.
Low Maintenance, Wildlife, Architectural, Specimen tree
Plant in deep, fertile, well-drained soil. Will tolerate lime.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral
Partial Shade, Full Shade
North, South, East, West
Exposed, Sheltered
Hardy (H4)
Zone 9, Zone 8, Zone 7, Zone 6
Quercus phellos (Willow oak)
Acute Oak Decline
Other
Present (Limited)
3
5
Serious disorder of oaks likely to be caused by a complex of organisms. Eradication is not feasible; but good silvicultural practices could help to reduce spread and impacts.
Quercus phellos (Willow oak)
Oak jewel beetle; Oak splendour beetle; Two -spot woodborer
Agrilus biguttatus
Insect
Present (Limited)
3
5
Native beetle attracted to stressed trees and which is one of the biotic factors contributing to Acute oak decline. Good silviculture practice can help to mitigate the decline in tree health.
Quercus phellos (Willow oak)
Ramorum leaf blight; Ramorum shoot dieback; Rhododendron twig blight; Sudden oak death
Phytophthora ramorum
Oomycete
Present (Limited)
4
4
Pathogen of larch and other hosts subject to EU emergency legislation. A containment strategy is in place in the UK; reflecting its presence in wider environment/forestry settings in some areas. EU regulatory status is under review.
Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.
Traveling or importing plants? Please read "Don't risk it" advice here
Suspected outbreak? Click here for contact details to report to the relevant authority.
Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
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This plant likes... | Garden match | |
Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | Tell us... |
Soil drainage: | Moist but well-drained, Well-drained | Tell us... |
Soil pH: | Acid, Alkaline, Neutral | Tell us... |
Light: | Partial Shade, Full Shade | Tell us... |
Aspect: | North, South, East, West | Tell us... |
Exposure: | Exposed, Sheltered | Tell us... |
Hardiness: | Hardy (H4) | Tell us... |
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