Amelanchier laevis ‘Cumulus’ – Cumulus Allegheny Serviceberry

Botanical Name: Amelanchier laevis ‘Cumulus’

Alternate Name: Cumulus Allegheny Serviceberry

Allegheny serviceberry is an introduction from Princeton Nurseries in New Jersey.  It can be considered a small upright tree or a large shrub.

The 5-petaled, slightly fragrant, white flowers droop in clusters in early spring (April) before the leaves. Flowers give way to small, round, edible berries which ripen to dark purplish-black in June (hence the sometimes common name of Juneberry) and resemble blueberries in size, color and taste. The leaves are finely-toothed and emerge in spring with a bronzish-purple tinge. The leaves of the Cumulus serviceberry mature to lustrous dark green in summer and turn red-orange in fall.

This is a good selection for native plant areas. Shrub forms can be grown as tall informal hedges or screens and are attractive to wildlife. Its tolerance to some urban pollution makes this a good choice to use in smaller landscapes and under power lines.

Cumulus Allegheny Serviceberry is also resistant to verticillium wilt.



Fall Color


Flower Color

Flowering Time

Growth Rate

Mature Height


Mature Width



USDA Zones

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Height: 25 ft.
Spread: 15 – 20 ft.
Shape: Upright oval
Flower Color: White in clusters
Flowering Time:
Fall Color: Bright Orange to Red
Features: nice fall color
Exposure: Full Sun
Watering: Moderate & Regular, tolerates drought
Soil: Tolerant of a somewhat wide range of soils, but prefers moist, well-drained loamy soil.
Growth Rate: Medium
USDA Zones: 4-8
Uses: Accent tree, lawn tree, park tree, street tree, lining walkways, wildlife gardens
Similar Trees: Autumn Brilliance Serviceberry


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