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Hortensia paniculé
Habit (mature) · Dominicus Johannes Bergsma / Wikimedia Commons · CC BY-SA 3.0
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Hortensia paniculé

Hydrangea paniculata
La plus robuste, la plus résistante au froid et la plus tolérante au soleil des hortensias courants, cultivée pour ses grandes grappes florales coniques (panicules) qui s'ouvrent d'un blanc crème au milieu ou à la fin de l'été et virent au rose, au rose vif ou à un ton fauve à mesure que la saison se rafraîchit. Comme il fleurit sur le bois de l'année, il fleurit de façon fiable même après des hivers rigoureux et peut être taillé sévèrement à la fin de l'hiver sans perdre le spectacle. Originaire de l'est et du sud de la Chine, du Japon, de Sakhaline et des îles Kouriles, l'espèce est grande — un arbuste arqué, à tiges multiples, souvent en forme de vase, qui peut atteindre la taille d'un petit arbre — bien que la plupart des cultivars de jardin aient été sélectionnés plus compacts. Il veut du plein soleil à la mi-ombre et une humidité constante ; toutes ses parties sont toxiques en cas d'ingestion.
Review: Source-backed
Climate fit: moderate (58/100)
Focal point
Structure
Border
Light
Full sun / Part shade
Water
Consistent moisture
Mature size
96-300" tall · 99" apart
Hardy in zones
3a-8b
brutally cold to frosty winters
Native in Illinois
No

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Cultivé strictement comme ornement floral.

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.
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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). Hortensia paniculé (Hydrangea paniculata). Retrieved 2026, June 13, from https://plotwright.garden/plants/hydrangea-paniculata
Sources for every fact
Every fact on this page traces to a source. 18 fields cited18 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
Wikimedia Commons
Photo · CC BY-SA 3.0
Backs 1 field
Image

Community photos

The photos above are our reviewed reference set, curated for accuracy.