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QUERCUS dentata 'Sir Harold Hillier'
Commonly known as Daimio oak, Daimyo oak
Large green leaves which turn brown in the autumn and hold on the tree all winter
Further Reading....
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Deciduousshallowly lobed to wavy-margined dark green leaves to 30cm (12in) or more long
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Height8m (26ft) -
Spread6m (20ft)
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TreeVery slow-growing, stoutly-branched tree. Bark becomes fissured, splitting into scaly grey plates. Ovoid to almost spherical acorns
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Full sun -
Partial shade
QUERCUS dentata 'Sir Harold Hillier'
- Details
- Description
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional Features
Pests & DiseasesAphids, gall wasps, oak wilt, honet fungus, powdery mildew, bracket fungi
Place of originEastern Asia. UK. Sir Harold Hillier Arboretum, Hants. Collected as seeds from South Korea in 1976 -
HardinessFully hardy
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Leaf margin
Lobed(see photos above) -
Leaf shape
Obovate
(see photos above) -
Pruning group
Pruning group 1Suitable for: Deciduous and evergreen trees, and some deciduous shrubs.
Pruning: Minimal pruning required. Prune wayward or crossing branches to maintain a healthy framework.
When: When dormant in the late winter/early spring. Some in the summer/autumn to prevent bleeding of sap.
RHS group 1 -
Soil ConditionsFertile moist well-drained soilNeutral to acid soil
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Toxic - Category C
Harmful if eaten(Can be harmful to pets if eaten) -
Tree ShapeRounded to broadly spreading
Quercus - Care Guide
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8m (26ft)
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6m (20ft) |
Useful extras...
Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00
Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
2 options from £6.00
Vermin & Pest Control
Tree Guards
Essential small tree protection from vermin and strimming. This pack includes 5 x 90cm canes and 5 x 90cm spiral guards. Includes instructions.
Only £5.00
Garden Goodies
Slate Plant Labels
These wonderfully tactile natural slate plant labels are hand made in Cornwall and come with a chalk pen.
Just stick them in your pot or border. Pack of 6.
Only £10.20
Garden Goodies
Slate Tie-on Plant Labels
Hand made in Cornwall, these delightful natural slate labels are perfect for pots.
Comes with chalk pen. Pack of 5
Only £10.20
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