Overcup Oak (Quercus lyrata)

Common names:
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General Plant Information (Edit)
Plant Habit: Tree
Sun Requirements: Full Sun
Water Preferences: Wet
Wet Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 9b
Plant Height: 40 to 60 feet in landscapes; to over 100 feet in wild
Plant Spread: 40 to 60 feet
Leaves: Good fall color
Fruit: Other: acorn about 3/4 to 1 inch wide and high, covered mostly by cup
Fruiting Time: Late summer or early fall
Flowers: Inconspicuous
Flower Time: Spring
Uses: Shade Tree
Dynamic Accumulator: K (Potassium)
Resistances: Flood Resistant
Propagation: Seeds: Sow in situ
Pollinators: Wind
Miscellaneous: Tolerates poor soil

summer leaves

Photo gallery:

Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Aug 28, 2018 2:35 PM

As a northerner, I have not seen this mostly southern tree; only once at the Chicago Botanic Garden in Glencoe, Illinois, just north of the city. It certainly is a beautiful tree! Its glossy leaves are 6 to 10 inches long and 1 to 4 inches wide with 5 to 9 rounded lobes separated by broad, irregular sinuses, and turn a rich yellow-brown in autumn. The broad, nearly round acorn is about 1/2 to 1 inch wide and is covered almost completely with a scaly cup, thus its common name. The gray-brown, scaly bark is similar to that of the more common and widespread White Oak. It grows in bottomlands from southern New Jersey down the coastal region to northern Florida to east Texas up to Missouri & southern Illinois. It develops a shallow root system, even though seedlings have a taproot for a little while. It grows a little under to about a foot/year and lives to about 400 years. The famous Dr. Michael Dirr has been recommending it as a good landscape tree that is easier to transplant than most of its white oak group kin.

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Discussion Threads about this plant
Thread Title Last Reply Replies
What type of oak tree is this? by OTWUMASI Apr 27, 2019 11:38 AM 2

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