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QUERCUS (HERITAGE®)

Image of Quercus 'Clemons' (HERITAGE®) PP11431

Mark A. Miller

Family

Fagaceae

Botanical Name

QUERCUS 'Clemons'(HERITAGE®) PP11431

Plant Common Name

Clemons Hybrid Oak, Heritage® Oak, Hybrid Oak

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

With excellent cold hardiness, resistance to powdery mildew and breakage from wind and ice, the Heritage® oak is a shade tree of outstanding growth and character! A hybrid deciduous tree named 'Clemons', it was selected as a seedling from a cross between (Quercus robur) and burr oak (Quercus macrocarpa) found growing in Illinois in 1974. It is sometimes referred to as Quercus mcdanielsii, honoring a late oak hybrid-specialist. This oak also grows from a strong and straight central leader, unlike many young oaks, and also tolerates the huge temperature swings (warm to subfrezzing in hours) often encountered in the American Midwest.

Attaining a rounded canopy with a pyramid-like top, this oak has lustrous dark green leaves with matted lighter gray undersides. Each leaf has five to seven pairs of rounded lobes. Flowering in oaks occurs in spring as new leaves emerge. They are non-showy and occur as drooping male catkins or tiny reddish female flowers on the twigs. Acorns ensue, ripening by fall. The fall foliage color is rather mundane, at best gaining yellow-green hues. In winter the upward-angled branch structure can be admired.

Grow Heritage® in full sun in a fertile, moist but well-drained soil, acidic to alkaline in pH. Tolerant of heat, drought, wind and bitter winter cold, its leaves do not tatter and are resisitant to powdery mildew. Use it as a tough shade tree for landscapes with room, such as parks, large lawns, campuses, cemeteries or golf courses. In good growing conditions this selection is much faster growing than oaks usually are known.

Characteristics

  • AHS Heat Zone

    8 - 1

  • USDA Hardiness Zone

    4 - 8

  • Sunset Zone

    A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22

  • Plant Type

    Tree

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    40'-60' / 12.2m - 18.3m

  • Width

    35'-50' / 10.7m - 15.2m

  • Bloom Time

    Spring

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Average

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Pyramidal

  • Seasonal Interest

    Spring, Summer, Fall

Ornamental Features

  • Flower Interest

    Insignificant

  • Flower Color

    Yellow Green

  • Fruit Color

    Chocolate

  • Foliage Color (Spring)

    Green, Dark Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Yellow Green, Tan

  • Bark Color

    Brown

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Repeat Bloomer

    No

  • Showy Fruit

    Yes

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Medium

  • Foliage Sheen

    Glossy

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Corky

  • Usage

    Feature Plant, Shade Trees, Street Trees

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    Yes