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Quercus incana (Bluejack oak )
1 hour care
per year
per year
12m
Max height
Max height
10.5m
Max spread
Max spread
50-100 years
To maturity
To maturity
Low
Toxicity
Toxicity
Plant details
Botanical name
Quercus incana
Other names
Bluejack oak , Upland willow oak, Sandjack oak, Cinnamon oak, Quercus cinerea, Shin oak, Quercus phellos var. latifolia
Genus
Quercus Quercus
Species
Q. incana - Q. incana is a thicket-forming, deciduous shrub or tree with an irregular crown and narrowly ovate to narrowly elliptic, blue-green leaves, grey-green beneath. Yellow-green male catkins and female catkins in spring are followed by spherical, brown acorns taking two years to mature.
Quercus incana is: Deciduous
Habit
Irregular
Toxicity
Ingestion may cause severe discomfort.
Flower
Yellow, Red in Spring
Foliage
Blue-green in Spring; Blue-green in Summer; Blue-green in Autumn
How to care
Watch out for
Pests
Also: Knopper gall wasps
Specific pests
Aphids , Oak gall wasps Aphids , Oak gall wasps
Diseases
Also suffers from oak wilt in North America only.
Oak wilt , Powdery mildew Oak wilt , Powdery mildew
General care
Pruning
Pruning group 1
Propagation methods
Grafting, Seed
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Where to grow
Quercus incana (Bluejack oak ) will reach a height of 12m and a spread of 10.5m after 50-100 years.
Suggested uses
Architectural, Low Maintenance, Specimen tree
Cultivation
Grow in well-drained, acid, sandy soil in sun. Tolerates drought and poor soil. Does not tolerate shade.
Soil type
Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Neutral
Light
Full Sun
Aspect
North, South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
Botanical name
Quercus incana
Other names
Bluejack oak , Upland willow oak, Sandjack oak, Cinnamon oak, Quercus cinerea, Shin oak, Quercus phellos var. latifolia
Genus
Quercus Quercus
Species
Q. incana - Q. incana is a thicket-forming, deciduous shrub or tree with an irregular crown and narrowly ovate to narrowly elliptic, blue-green leaves, grey-green beneath. Yellow-green male catkins and female catkins in spring are followed by spherical, brown acorns taking two years to mature.
Native to
Southeastern United States
Foliage
Deciduous
Habit
Irregular
Toxicity
Ingestion may cause severe discomfort.
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Colour
Flower
Yellow, Red in Spring
Foliage
Blue-green in Spring; Blue-green in Summer; Blue-green in Autumn
How to care
Watch out for
Pests
Also: Knopper gall wasps
Specific pests
Diseases
Also suffers from oak wilt in North America only.
Specific diseases
General care
Pruning
Pruning group 1
Propagation methods
Grafting, Seed
Monthly care advice
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Where to grow
Quercus incana (Bluejack oak ) will reach a height of 12m and a spread of 10.5m after 50-100 years.
Suggested uses
Architectural, Low Maintenance, Specimen tree
Cultivation
Grow in well-drained, acid, sandy soil in sun. Tolerates drought and poor soil. Does not tolerate shade.
Soil type
Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Neutral
Light
Full Sun
Aspect
North, South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Loamy, Sandy | Tell us... |
| Soil drainage: | Well-drained | Tell us... |
| Soil pH: | Acid, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | North, South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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