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QUERCUS palustris 'Sovereign'

Image of Quercus palustris 'Sovereign'

Jesse Saylor

Family

Fagaceae

Botanical Name

QUERCUS palustris 'Sovereign'

Plant Common Name

Pin Oak, Sovereign Pin Oak

Special Notice

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

General Description

The Sovereign pin oak fails to produce lower branches that angle sharply downward, unlike the wild species. This cultivar also produces excellent vigor and canopy form, as well as attractive foliage. Native to northeastern and central North America, pin oak is a tall, hardy, deciduous shade tree. Its crown is unique in that its bottom branches point downward, its central branches are horizontal and its upper branches point skyward. This tree has a strong leader and develops gray-brown bark that is smooth when trees are young and shallowly fissured when mature. The shiny, deeply lobed leaves of pin oak are yellow-green in spring, glossy dark-green in the summer and turn to scarlet, bronze-russet or red-brown in fall. If trees suffer inadequate growing conditions over summer they will produce little to no significant fall color. The wind-pollinated flowers occur in spring prior to leaf emergence. The acorns take two years to mature.

Pin oak performs well in full to part sun and well drained, acidic soil. If soils are not acidic enough, 'Sovereign' will develop a yellowing of the leaves, or chlorosis. In the landscape it is best grown as a shade tree for naturalistic landscapes, parks and large yards. This cultivar may be difficult to acquire because of propagation difficulties. It does not always graft well. The lack of weeping lower branches makes it an exceptional park and street tree candidate, especially in wet soil pockets.

Characteristics

  • AHS Heat Zone

    7 - 3

  • USDA Hardiness Zone

    4 - 8

  • Sunset Zone

    2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Tree

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    55'-70' / 16.8m - 21.3m

  • Width

    25'-35' / 7.6m - 10.7m

  • Bloom Time

    Spring

  • Native To

    Northeastern United States, Mid-Atlantic United States, Southeastern United States, North-Central United States, Central United States, Canada

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Wet Site, Pollution, Soil Compaction

  • Growth Rate

    Fast

  • Water Requirements

    Average Water

  • Habit

    Pyramidal

  • Seasonal Interest

    Spring, Summer, Fall

Ornamental Features

  • Flower Interest

    Insignificant

  • Flower Color

    Yellow Green

  • Fruit Color

    Brown

  • Fruit Color Modifier

    Striped/Striated

  • Foliage Color (Spring)

    Light Green, Yellow Green

  • Foliage Color (Summer)

    Green, Dark Green

  • Foliage Color (Fall)

    Tan, Dark Red, Bronze

  • Bark Color

    Brown, Gray

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Coarse

  • Foliage Sheen

    Glossy

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Fissured

  • Usage

    Feature Plant, Shade Trees, Street Trees

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Birds

  • Self-Sowing

    Yes