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Autumn Moon Full Moon Maple

Acer shirasawanum 'Autumn Moon'

This unique small tree is cherished for its dynamic foliage color, which transitions through various shades of chartreuse, yellow, and orange from spring to fall. It offers a distinct, rounded, full-moon leaf shape that provides a bold textural contrast in the garden. ‘Autumn Moon’ is noted for being hardier and more heat-tolerant than other yellow-leaved Acer shirasawanum cultivars like ‘Aureum’, making it a more resilient specimen for warmer climates like the St. Louis area, provided it has appropriate care to prevent leaf scorch in intense afternoon sun.

Type

Specimen

Height

8

-15

ft

Width

8

-15

ft

Foliage Type

Deciduous

Sunlight

Partial Sun

Water Requirements

Average; best in well-drained, moist, organically rich soil

Foliage Color

Chartreuse, yellow-green, and orange tones, often with pink or red highlights

Flower Color

Inconspicuous, reddish-purple flowers in spring

Resists

  • Deer

Attracts

  • Bees
  • Birds
  • Pollinators

Design Use

Special Traits

  • Showy Foliage
  • Fall Interest
  • Winter Interest
  • Black Walnut Tolerant

Hardiness Zones

5–9

Notes

Care: Prune in late winter or early spring while dormant to shape the plant or remove dead branches; avoid pruning in spring when sap is running. Very little pruning is needed to maintain its natural, graceful form.
Soil & Establishment: Prefers well-drained, slightly acidic soil; avoid soggy conditions. Provide consistent, deep watering during the first two growing seasons, and apply mulch to keep the root zone cool and moist.
Fertilizing: A light application of a slow-release granular fertilizer can be applied in early spring before new growth begins.
Pests & Diseases: Susceptible to aphids, scale, and verticillium wilt. Ensuring good drainage helps prevent root rot.
Fruit/Berry Production: Produces small, attractive red samaras (winged seeds) in early summer which add additional ornamental interest. No pollinator is specifically needed for fruit.
Habitat: The parent species (Acer shirasawanum) is native to Japan, growing as an understory tree in forest settings. It thrives in similar garden placements with good soil moisture and protection.
Wildlife: Attracts beneficial insects and birds and provides good habitat cover.
Plant Uses: Excellent as a specimen plant, focal point in a garden, or for container planting due to its slow, compact growth habit. It is suitable for city gardens with limited space.
Pet Safety: Generally considered non-toxic to dogs and cats according to the ASPCA.

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