Snowy mespilus
Amelanchier × lamarckii
Snowy mespilus is a naturally occurring hybrid (Amelanchier arborea × A. laevis) that originated in eastern Canada and became one of Europe's most popular small ornamental trees after widespread cultivation from the 18th century onward. It earns its keep three times over: clouds of white star-shaped flowers in spring, sweet edible dark-purple berries in summer that birds strip within days, and reliable orange-red autumn colour. The honest catch is its behaviour outside the garden: in the Netherlands, Belgium, and parts of Germany it has escaped cultivation so thoroughly that it is classified as an invasive on heathlands and acidic dune grasslands, where it shades out specialist low-growing flora — a consequence worth knowing before planting near conservation land.
Climate fit: narrow (39/100)
Focal point
Pollinator
Edible
Structure
Light
Full sun / Part sun
Water
Moderate water
Mature size
240-396" tall · 144" apart
Hardy in zones
4a-8b
very cold to frosty winters
Native in Illinois
No
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Flowers are visited by early-season bees and hoverflies.
Cold hardiness
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
✓
Well-suited today and still thriving in 2050.
Heat tolerance
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...
Where this plant fits
Suitable across 40 ecoregions — 35 climate-resilient through 2070 · 5 suited today. Best matches first.
Appalachian mixed mesophytic forests
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Appalachian-Blue Ridge forests
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Arizona Mountains forests
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Blue Mountains forests
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Canadian Aspen forests and parklands
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Central Pacific Northwest coastal forests
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Central Tallgrass prairie
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Central-Southern Cascades Forests
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Colorado Rockies forests
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Cross-Timbers savanna-woodland
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Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
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Chocolate vine is a vigorous, twining woody climber native to China, Japan, and Korea, producing clusters of spice-scented purple-maroon flowers in spring and large sausage-shaped fruits in autumn. It adapts readily to most well-drained soils in sun or part-shade and covers structures fast, making it a striking focal-point plant for walls, fences, and pergolas. The honest catch is its invasive potential: it smothers native shrubs and trees by blocking sunlight and is listed as invasive across much of the US East Coast and the Pacific Northwest, so it must not be planted where it can escape into natural areas, and annual hard pruning is essential to keep it under control.
Educator packet
Plant packet
Snowy mespilus educator packet
Snowy mespilus is a naturally occurring hybrid (Amelanchier arborea × A. laevis) that originated in eastern Canada and became one of Europe's most popular small ornamental trees after widespread cultivation from the 18th century onward. It earns its keep three times over: clouds of white star-shaped flowers in spring, sweet edible dark-purple berries in summer that birds strip within days, and reliable orange-red autumn colour. The honest catch is its behaviour outside the garden: in the Netherlands, Belgium, and parts of Germany it has escaped cultivation so thoroughly that it is classified as an invasive on heathlands and acidic dune grasslands, where it shades out specialist low-growing flora — a consequence worth knowing before planting near conservation land.
Scientific name
Amelanchier × lamarckii
Plant type
tree
Hardiness
4a-8b
Light
full-sun, part-sun
Moisture
moderate
Spacing
144 inches
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.
Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Snowy mespilus (Amelanchier × lamarckii). Retrieved 2026, June 30, from https://plotwright.com/plants/amelanchier-lamarckii
Sources for every fact
Every fact on this page traces to a source. 18 fields cited - 18 source-backed.
RHS Find a Plant
Botanical research database
Backs 17 fields
Identity
Summary
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