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QUERCUS macrocarpa
Commonly known as Bur oak, Mossy cup oak
Yellow autumn colour, large acorns
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DeciduousGlossy, dark green leaves to 25cm (10in) long, white-hairy beneath, with deep and irregular lobes
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Height15m (49ft) -
Spread10m (33ft)
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TreeSlow-growing, spreading tree with ridged, dark brown bark and corky, hairy shoots.. Produces solitary, ovoid acorns to 5cm (2in) long in large, fringed cups
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Hardy - very cold winterHardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°F) -
Full sun -
Partial shade
QUERCUS macrocarpa
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Additional Features
Pests & DiseasesAphids, gall wasps, oak wilt, honey fungus, powdery mildew, bracket fungi
Place of originEastern North America -
Garden Location/ConditionsWoodland garden
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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.
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Seasonal InterestAutumnSummer
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Soil ConditionsFertile well drained soilNeutral to acid soil
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Toxic - Category C
Harmful if eatenpets, i.e. cats, dogs, rabbits, rodents, notably dogs -
Tree ShapeRounded to broadly spreading
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15m (49ft)
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10m (33ft) |
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
Afterplant - Grow Your Own
AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
Only £8.00
Fertilisers & Feeds - Empathy
Afterplant - Tomatoes
AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
Only £8.00
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)
3 options from £3.00
Fertilisers & Feeds - Empathy
Rootgrow Ericoid mycorrhizal fungi
This specially adapted Rootgrow™ mycorrhizal fungi will boost the growth of acid-loving plants like rhododendrons, azaleas, heathers and blueberries.
It contains ericoid and arbuscular mycorrhizal fungi, which are found in poor acidic soils where ericaceous plants naturally grow.
Only £7.50
Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants.
Perfect used in conjunction with Rootgrow™.
Only £7.50
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