Quercus robur x alba ‘Scarlet Letter’ – Scarlet Letter™ Oak

Botanical Name: Quercus robur x alba ‘Scarlet Letter’

The Scarlet Letter Oak tree (Quercus robur x alba ‘Scarlet Letter’) is a striking and unusual newly improved variety of oak, similar to the Crimson Spire Oak. This tree is a hybrid of the White Oak (Quercus alba) and the English Oak (Quercus robur).

This oak tree has strong branches and a dense, compact growth habit that can withstand the weight of snow and strong winds. It has an upright growing, columnar shaped crown. It is a very useful addition to landscapes as a screen between properties or a vertical accent in a garden. It is also very effective when planted in a row, lining a driveway. The Scarlet Letter Oak tree grows to a height of 35-45 feet tall with a spread of 10-15 feet.

The leaves are an attractive mid green and deeply lobed. The fall color is a vibrant red, and this tree will hold onto its leaves long into winter.

The Scarlet Letter Oak tolerates a wide range of conditions, adapting well to most types of soil. It is also drought tolerant and withstands summer heat remarkably well. Fertilize with iron and amend the soil with organic matter to encourage strong growth and good fall color.

This oak has excellent resistance to leaf scorch and powdery mildew and moderate resistance to leaf spot and root rot.

Description

Height: 35-45 ft.
Width: 10-15 ft.
Shape: Rounded
Flower Color: Yellowish-Green
Flowering Time: April
Fall Color: Red
Features: Long lasting fall color, excellent screening tree, attractive foliage
Exposure: Full Sun
Watering: Moderate & Regular
Soil: Prefers acidic, moist, and well-drained soils.
Growth Rate: Moderate
USDA Zones: 3-7
Uses: Vertical accent, screening tree, wind break, lining a driveway
Similar Trees: White Oak (Quercus alba), Pacific Brilliance™ Pin Oak (Quercus palustris ‘PWJR08’)

Additional information

Shape

Rounded

Flower Color

Green, Yellow

Flowering Time

April

Fall Color

Red

Growth Rate

Moderate

Uses

Lining Driveways, Screening, Vertical Accent, Windbreak

USDA Zones

3, 4, 5, 6, 7

Mature Height

30'-40', 40'-50'

Mature Width

10'-15'

Exposure

Full Sun

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