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Chêne à gros fruits

Chêne à gros fruits

Quercus macrocarpa
L'un des chênes natifs d'Amérique du Nord les plus majestueux — un membre à croissance lente et longévif du groupe des chênes blancs que Missouri Botanical Garden évalue à 60-80 feet (parfois jusqu'à 150) avec une couronne également large et arrondie. Nommé pour ses gros glands dont les cupules sont frangées d'écailles mousseuses et hérissées près du bord. Remarquablement tolérant à la sécheresse et à l'argile, il s'étend du sud-est du Canada à travers le centre des États-Unis et peut mettre jusqu'à 35 ans avant de porter sa première récolte de glands.
Native: 37 US states + 6 CA provinces
Climate fit: broad (83/100)
Focal point
Structure
Light
Full sun
Water
Moderate water
Mature size
720-960" tall · 480" apart
Hardy in zones
3a-8b
brutally cold to frosty winters
AHS heat range
1-11
Plant range authored in AHS heat-zone terms.
Native in Illinois
Yes
A documented larval host for the Polyphemus moth and 1 other species — caterpillars feed on its foliage before becoming the next generation.

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...

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). Chêne à gros fruits (Quercus macrocarpa). Retrieved 2026, June 14, from https://plotwright.garden/plants/quercus-macrocarpa
Sources for every fact
Every fact on this page traces to a source. 18 fields cited - 18 source-backed.
Missouri Botanical Garden PlantFinder
Botanical research database
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
Wikimedia Commons
Photo · CC BY 2.0
Backs 1 field
Image
Lady Bird Johnson Wildflower Center Native Plant Database
Botanical research database