Bur Oak (Quercus macrocarpa)
The bur oak is a massive, long-lived deciduous tree native to the central and eastern United States, often growing 70 to 100 feet tall with a broad, rounded crown. Its deeply furrowed bark and sturdy trunk give it a commanding presence in any landscape. The leaves are large and deeply lobed, turning yellow to brown in autumn.
Bur oaks produce sizable acorns with characteristic fringed caps that serve as a crucial food source for wildlife, including squirrels, deer, and numerous bird species. The tree thrives in well-drained soils and full sun, demonstrating remarkable drought tolerance and adaptability.
Known for its durability and iconic silhouette, the bur oak is a favorite for parks, open spaces, and long-term landscape projects. Its impressive size, ecological importance, and striking form make it a signature tree of the North American landscape.
Bur Oak
Bur Oak (Quercus macrocarpa)
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Zones: 3–8
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Soil Type: Tolerant of clay, loam, sandy soils; alkaline or acidic
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Site Selection: Full sun; prairie edges, uplands, or savannas
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Mature Height & Width: 70–90 ft tall / 60–80 ft wide
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Growth Rate: Slow to moderate
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Moisture Requirements: Moderate to low
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Plant Characteristics: Thick bark, drought-tolerant, huge acorns, wide spreading canopy
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Please Note: Oswald Nursery only offers shipping on 1st Year Seedlings.
Local Store Pickup is available by appointment at the following location:
1650 N Algona St, Dubuque, IA 52001, USAPlease contact us at oswaldnursery@gmail.com to schedule a convenient pickup time.




















