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FRAXINUS lanuginosa

Image of Fraxinus lanuginosa

Russell Stafford

Family

Oleaceae

Botanical Name

FRAXINUS lanuginosa

Plant Common Name

Japanese Ash

Special Notice

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

General Description

Japanese ash is stately in its rounded form, having tiny white clustered blossoms in late spring and yellow and red fall foliage displays. A round-canopy deciduous tree, it's native to southern Korea and Japan. The smooth, deep gray bark protects the wood that is often used to make baseball bats.

The compound leaves emerge lime green and fuzzy in spring from fuzzy gray-brown buds on the branches. Leaves have three to seven broadly oval leaflets with finely serrated edges. In fall the foliage turns shades of yellow, red and claret. The puffy clusters of white flowers emerge after the leaves in late spring and are usually dioecious, which means that trees are either bear entirely male or female blossoms. Some trees in Japan are known to have both gendered flowers on the same tree. Only the female flowers produce the clusters of winged fruits, called samaras. When developing the samaras have a reddish green color and then in late summer ripen to rosy brown.

Grow Japanese ash in full sun and any fertile garden soil. It is best in a moist, deep, humusy soil, but tolerates soggy ground as well as moist nutrient-poor soils. Male trees are preferred for urban areas because they do not produce the messy, unkempt-looking clusters of fruits which will be eaten by birds and squirrels. This is a lovely shade tree for a variety of garden locations.

Characteristics

  • AHS Heat Zone

    7 - 1

  • USDA Hardiness Zone

    5 - 8

  • Plant Type

    Tree

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    30'-45' / 9.1m - 13.7m

  • Width

    25'-36' / 7.6m - 11.0m

  • Bloom Time

    Late Spring

  • Native To

    Japan, Korea

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Average

  • Soil type

    Clay, Loam

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Oval/Rounded

  • Seasonal Interest

    Spring, Summer, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Ivory

  • Fruit Color

    Rose, Dark Salmon, Sandy Brown

  • Foliage Color (Spring)

    Green, Lime Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Red, Yellow Green, Dark Red

  • Bark Color

    Gray, Slate Gray

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Smooth

  • Usage

    Shade Trees

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Birds

  • Self-Sowing

    Yes