PlantsQuercus→Bur Oak (Quercus macrocarpa)

Common names:
Give a thumbs up Bur Oak
Give a thumbs up Burr oak
Give a thumbs up Savannah oak
Give a thumbs up Overcup oak
Give a thumbs up Mossycup Oak
Give a thumbs up Oak

Botanical names:
Quercus macrocarpa Accepted
Quercus macrocarpa var. macrocarpa Synonym
Quercus macrocarpa var. depressa Synonym

General Plant Information (Edit)
Plant Habit: Tree
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Dry Mesic
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 8b
Plant Height: 60 to 80 feet (to 150 feet)
Plant Spread: 60 - 80 feet
Leaves: Unusual foliage color
Other: Dead leaves often remain on branches over the winter (marcescent)
Fruit: Showy
Edible to birds
Other: Acorns
Fruiting Time: Fall
Flowers: Inconspicuous
Bloom Size: Under 1"
Flower Time: Spring
Underground structures: Taproot
Suitable Locations: Street Tree
Uses: Shade Tree
Useful for timber production
Edible Parts: Fruit
Dynamic Accumulator: K (Potassium)
Wildlife Attractant: Birds
Resistances: Drought tolerant
Propagation: Seeds: Seeds are hydrophilic
Pollinators: Wind
Containers: Not suitable for containers
Miscellaneous: Monoecious


This plant is tagged in:
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Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Dec 10, 2017 7:37 PM

But Oak is a magnificent large tree with a handsome coarse texture of foliage, bark, and branching. It is common and widespread in the Midwestern US as a forest tree, savannah tree, and sometimes grows in open bottomlands and fields. Its native range is from eastern Texas up to the Dakotas and southern Manitoba, over to southeast Ontario, spots in New England and New York, central and western Pennsylvania and western Maryland over to central Tennessee. Its unique leaves are widest near the end and they develop a golden brown fall color. The brown bark is thick and heavily furrowed and withstands prairie fires. It bears large acorns about 1.25 inches long or wide with burly fringed cups each year, like other members of the White Oak subgroup. I found one largest Bur Oak acorn that is 1 3/4 inches wide from a tree planted in southeast PA that may a cultivar selection. It grows in many soils from draining wet to dry, to very acid to alkaline, about pH 4.5 to 8.0. It is slow growing of about 3/4 foot/year and lives about 200 to 300 years, even to 500. It develops a big taproot, so it is difficult to transplant. It is offered by some large, diverse nurseries and native plant nurseries. It is being planted in some parks, land preserves, and native plant restorations.

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Posted by robertduval14 (Mason, New Hampshire - Zone 5b) on Apr 18, 2013 8:59 PM

The state tree of Iowa.

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Plant Events from our members
MrsBinWY On April 25, 2021 Obtained plant
from Wyoming Association of State Foresters and Laramie County Extension Service; received and planted 4-24-2021. ~14" of stiff roots, 18" of softer roots & 9" of height.
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
Excellent! by flaflwrgrl Apr 13, 2016 4:34 PM 0
Is this Oak? by mawil05 Jul 6, 2020 9:08 PM 11
Help with identifying my tree by Webbed Oct 21, 2019 12:05 AM 19
bush with "churro" branches by whichbush Nov 20, 2018 9:52 AM 4
Bagworms WANTED: yes you read it right! by GregC Jun 17, 2020 6:42 PM 32
Bug spoiled a whole plant, spreading to others, flying on house wall by ramyagaddam Jun 21, 2018 9:00 AM 8
Weed or Tree? by Pat810 Jun 9, 2018 9:13 PM 3
What tree is this? Central Tx by EllenD318 Mar 31, 2018 9:20 PM 9
Wonder what this is- by AlyssaBlue Jun 19, 2017 7:24 PM 8
Oak tree in Texas #4 by wildflowers Oct 3, 2015 7:08 AM 23
Salt tolerant plants by eclayne Oct 10, 2020 8:42 PM 133

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