Rosaceae

saskatoon berry

Amelanchier alnifolia

saskatoon berry

Photo: Thayne Tuason — CC BY-SA 4.0 · source

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Survives zone 2 through 7

Harvest calendar

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Best planted in early spring after your last frost, or in fall before the ground freezes, depending on your climate.

Saskatoon — sweet, blueberry-like with a distinct almond note. Very good.

Hardiness
Zone 2–7
Habit
Shrub
Edible part
Fruit
Ripens
June–July
Mature size
Shrub 2–4 m; containerable when young
Light
Partial to FULL SUN — understory tree, but berry production is far better in sun
Soil pH
6.0–7.0 (near-neutral)
Environment
Temperate
Native range
Western and central North America, from Alaska, Yukon and the Northwest Territories south through British Columbia and the Canadian prairies to California, Nevada, Arizona and New Mexico, and east across the plains to Iowa, Wisconsin, Ontario and Quebec — it is the most widely distributed Amelanchier in western North America and the dominant serviceberry of the northern Great Plains and Pacific Northwest.
Status
Cultivated
Years to fruit
2–4 yrs
Growth speed
Moderate — about 30-45 cm/year (12-18 in) once established, reaching mature height (1.2-4m depending on form) within roughly 3-5 years and beginning to fruit at 2-4 years old.
Spacing
250 cm (98 in) apart — about 6.3 m² (67 sq ft) per plant
Leaf shape
Oval to broadly oblong or nearly round leaves to about 5cm long, coarsely toothed mainly in the upper half with prominent veins running out to each tooth; pale to dark green in summer, turning yellow to orange-red in autumn.
Root system
Extensive suckering root system built around a woody root crown with both horizontal and vertical rhizomes, allowing the plant to form colonies, thickets, or mats rather than staying a single clump.
Fruit description
Blackcurrant-sized berries, roughly 10-15mm across, deep purple-blue, with a sweet, apple-like flavor carrying subtle grape and almond notes — widely regarded as the best-tasting fruit in the genus, traditionally eaten fresh, dried like raisins, or processed into jams, pies, and pemmican.
Propagation
Seed is best collected "green" — fully formed but before the coat has hardened — and sown immediately; dried, stored seed instead needs about 4 weeks of warm stratification followed by a cold winter period, and can still take 18 months or more to germinate. In nursery practice, named selections are propagated by division of 2-year-old root suckers, softwood cuttings, layering, grafting, or tissue culture.
Pollination
Self-fertile/apomictic

The edible parts listed above are a starting point, not a field guide. Identify a plant with certainty — ideally against a local authority — before eating any part of it, and read the full disclaimer. Spotted something wrong? Report it.

Growing guide

Fertilizing. Adaptable to sandy, loamy, and clay soils across acid, neutral, or alkaline pH, and lime-tolerant — a light spring application of balanced fertilizer or compost improves fruit set in cultivated plantings, but heavy nitrogen feeding favors leafy growth over fruit.

How it spreads. Strongly rhizomatous and colonial — mature plants build a massive woody root crown plus both horizontal and vertical rhizomes (one excavated 9-year-old specimen had vertical rhizomes reaching over 30 inches deep), and USDA Forest Service fire-ecology research found that more than 90 percent of new stems in wild stands were root sprouts rather than seedlings, so it readily forms dense thickets, clumps, or mats and resprouts vigorously after fire or top-kill.

Growing tips. Best fruit production comes in full sun, though it tolerates semi-shade. Like other Amelanchier it is in the Rosaceae and shares the apple/crabapple disease complex — cedar-hawthorn and other Gymnosporangium rusts (orange leaf spotting and horn-like fruit deformities) and occasional fire blight. Birds strip ripening fruit quickly, so netting is often needed. Foliage turns yellow to orange-red in autumn.

Companion planting. Rosaceae host for cedar-apple/hawthorn rust (Gymnosporangium spp.), which needs both a Rosaceae host and a Juniperus (juniper/eastern red cedar) host to complete its life cycle. Spores can travel over a mile, so distance alone won't fully prevent it — resistant cultivars are the more reliable control, but avoiding nearby junipers helps.

Grow journal

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About the data

Zone figures are typical published ranges — microclimate, drainage and siting shift them by a zone in either direction. Store links are found by an automated search, refreshed every six weeks. Availability is seasonal; stock and prices are not tracked.

Venlo — a reference for cold-hardy edible plants