A Narrow, Upright Oak with Brilliant Scarlet Fall Color and Strong Structure

The Scarlet Letter Oak is a distinctive hybrid oak known for its tall, narrow form and exceptional fall color. This ornamental and shade tree combines the hardiness and adaptability of oak species with a refined, columnar habit that fits beautifully into smaller landscapes. In autumn, its deep green foliage transforms into vivid shades of scarlet red, creating a dramatic seasonal display.

Key Features:

• Brilliant Fall Color: Foliage turns striking scarlet red in autumn, offering standout seasonal interest.
• Columnar Growth Habit: Upright, narrow form makes it ideal for limited spaces and urban landscapes.
• Hardy and Resilient: Adaptable to a wide range of soils and environmental conditions once established.
• Strong Branch Structure: Excellent wind and storm resistance.
• Low Maintenance: Requires minimal pruning and care after establishment.

Mature Size:

• Height: 35–45 feet
• Spread: 12–18 feet
• Growth Rate: Moderate

USDA Hardiness Zones:

• Zones: 5–9

Chill Hours:

• N/A (well-suited to a wide range of climates)

Care Instructions:

• Sunlight: Prefers full sun (6+ hours daily) for best growth and fall color.
• Soil: Thrives in well-drained soil; tolerant of clay, loam, and sandy soils.
• Watering: Water regularly during establishment; drought tolerant once mature.
• Pruning: Prune in late winter to early spring to remove dead or damaged branches and maintain form.

Landscape Uses:

• Ideal for narrow spaces, streetscapes, and urban plantings.
• Excellent as a vertical accent or shade tree in residential landscapes.
• Perfect for lining driveways or property borders.
• Provides habitat and food for wildlife, including birds and pollinators.

The Scarlet Letter Oak (Quercus × bimundorum ‘Scarlet Letter’) is an outstanding choice for landscapes needing a strong vertical element, vibrant fall color, and long-term durability. Its refined shape, resilience, and seasonal beauty make it a reliable and visually striking addition to both modern and traditional settings.