PL. —Amelanchier lamarckiiBotanical illustration — drop image
Amelanchier lamarckii

Snowy Mespilus

SpringSummerFall
4a8bHardiness zone
Peak bloom windowZone 6b · frost-offset weeks
Winter
In bloom
Spring
Peak bloom
Summer
Not in bloom
Fall
Not in bloom
Peak bloom
In bloom
Background

Amelanchier lamarckii, the snowy mespilus, is a small, multi-stemmed flowering tree of garden origin — likely a hybrid between the North American species Amelanchier arborea and A. laevis, long naturalized and widely planted across Europe. It opens the year with a cloud of small white star-shaped flowers just as the coppery-bronze young leaves unfurl, one of the earliest and most reliable spring flowering trees for a small garden, followed in early summer by dark purple-red berries that are edible and much loved by birds. The foliage turns strong shades of orange and red in fall, giving the tree a genuine three-season display in a compact footprint most specimen trees can't match.

It grows easily in full sun to light shade and average garden soil, tolerating both moist and drier conditions once established, though it does best with consistent moisture and a slightly acidic pH. Its naturally graceful, multi-stemmed or light-branching habit needs little pruning beyond removing crossing branches, suckers at the base, and any dead or damaged wood in late winter while the tree is dormant. Rated only occasionally to moderately deer resistant, so young trees may need protection in areas with heavy browse pressure; the berries also draw birds quickly, so net or pick promptly if the fruit itself is wanted for the table rather than the birds.

Care guide
SunFull sun to part shade
WaterModerate
SoilMoist, well-drained, slightly acidic
Spacing15–20 ft
Height15–25 ft
Zone4a – 8b
Frost hardy
Seasonal tasks
spring
cutRemove suckers, crossing branches, and dead or damaged wood while the tree is still dormant
sowPlant bareroot or container-grown trees in early spring or fall, in full sun to light shade
summer
watchNet ripening berries or pick promptly in early summer if the fruit is wanted before birds strip the tree
watchWater during dry spells in the first two to three seasons to establish a deep root system
fall
watchWatch for deer browse on young trees and protect with fencing or a repellent if pressure is heavy
Common problems

Fungal leaf spot

Symptoms

Brown or purplish spots on the leaves, often ringed with a yellow halo, that spread and merge in warm, humid, or wet weather; heavily spotted leaves yellow and drop early.

Treatment

Pick off spotted leaves and clear fallen debris to remove overwintering spores. Improve air circulation by thinning, and water at the base so foliage dries quickly. If it persists, apply a copper- or sulfur-based fungicide at the first sign.

Powdery mildew

Symptoms

White or grey powdery coating on leaves — usually starting on older growth in humid conditions or when nights cool.

Treatment

Improve air circulation by thinning plants. Apply neem oil or potassium bicarbonate spray at first sign. Avoid overhead watering.