The Crimson Spire Oak is a striking, columnar hybrid oak that’s well-suited for Southern Idaho’s landscapes, especially where vertical interest or space-saving design is needed. Known for its narrow, upright form and fast growth, this tree makes an excellent privacy screen, windbreak, or architectural accent. It thrives in USDA Zone 5, handling the region’s hot summers and cold winters with ease. The tree’s dense, dark green foliage resists disease and turns a rich red in the fall, adding seasonal color to its structural appeal. Tolerant of a wide range of soils and air pollution, the Crimson Spire Oak is a low-maintenance, high-impact choice for urban and rural settings alike.
Crimson Spire Oak Tree Specs:
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USDA Zone: 5–7
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Mature Height: 40–45 feet
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Mature Spread: 15–20 feet
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Growth Rate: Fast (up to 2 feet per year)
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Longevity: 70–100+ years
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Watering Needs: Low to moderate; drought-tolerant once established
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Soil Requirements: Adaptable to most soils; prefers well-drained
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Sun Exposure: Full sun
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Foliage: Dark green turning crimson red in fall
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Pest/Disease Resistance: High; resistant to powdery mildew and oak diseases
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Uses: Privacy screens, windbreaks, vertical accents, urban planting
With its tall, narrow form and vivid fall color, the Crimson Spire Oak is an ideal solution for Southern Idaho gardeners looking to add beauty, function, and durability to their landscapes.