Port (adulte) - Lothar Spurzem / Wikimedia Commons - CC BY-SA 2.0 DE
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Poirier de Chine (poirier de Callery)
Pyrus calleryana
Un arbre à fleurs caduc, au port pyramidal à arrondi, autrefois planté partout comme arbre de rue et de pelouse rapide et ordonné (surtout le cultivar 'Bradford'), prisé pour un nuage étouffant de fleurs blanches du tout début du printemps, un feuillage lustré en été et une couleur automnale du rouge au pourpre fiablement éclatante. Plotwright ne recommande pas de le planter. C'est aujourd'hui une ENVAHISSANTE reconnue, interdite ou en cours de retrait dans un nombre croissant d'États (Ohio, Pennsylvania, South Carolina et d'autres) parce que les cultivars pollinisés de façon croisée produisent des semis fertiles qui s'échappent en denses fourrés sauvages et épineux qui étouffent les plantes indigènes. Les fleurs sentent en outre désagréablement le poisson de près, et 'Bradford' a des unions de branches notoirement faibles qui se fendent lors des tempêtes vers 15-25 ans. Choisissez plutôt un arbre à fleurs indigène — serviceberry (Amelanchier) ou eastern redbud (Cercis canadensis) — qui vous donne le même spectacle printanier sans le coût écologique.
Climate fit: moderate (51/100)
Structure
Focal point
Light
Full sun / Part shade
Water
Moderate water
Mature size
360-600" tall · 240" apart
Hardy in zones
5a-9b
very cold to frosty winters
Native in Illinois
No
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Cultivé uniquement comme arbre d'ornement à fleurs.
Cold hardiness
Future
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
USDA
Published baseline for this location from 1991-2020.
Source: USDA Plant Hardiness Zone Map 2023 (1991-2020 climatology) via ArcGIS FeatureServer
Well-suited
2050
Zone 7a
Plotwright
Projected zone for this same location in 2050 (2041-2070) using SSP3-7.0 (regional rivalry).
Well-suited
In plain terms: This location is in Zone 6b today. Its hardiness profile is cold winters, and coldest nights are typically around -3°F. By 2050, the projected hardiness zone is Zone 7a based on SSP3-7.0 (regional rivalry). That is a +0.5-zone shift from Zone 6b to Zone 7a by 2050.
✓
Well-suited today and still thriving in 2050.
Heat tolerance
Future
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 41 ecoregions — 39 climate-resilient through 2070 · 1 suited today · 1 newly possible by 2070. 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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Atlantic coastal pine barrens
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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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Chilean Matorral
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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). Poirier de Chine (poirier de Callery) (Pyrus calleryana). Retrieved 2026, June 14, from https://plotwright.garden/plants/pyrus-calleryana
Sources for every fact
Every fact on this page traces to a source. 18 fields cited - 18 source-backed.
NC State Extension Gardener Plant Toolbox
University extension service
Backs 17 fields
Identity
Summary
Plant type
Light
Moisture
Hardiness
Heat zone
Size
Spacing
Habit
Design roles
Seasonal interest
Growth stages
Lifecycle
Regional guidance
Success tips
Designer notes