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Ronce odorante
Habit (mature) · Sten Porse / Wikimedia Commons · CC BY-SA 3.0
Limited coverage

Ronce odorante

Rubus odoratus
Une ronce indigène sans épines cultivée pour ses fleurs, et non pour ses fruits. De grandes fleurs parfumées, rose pourpre à magenta, s'ouvrent sur une longue partie de l'été au-dessus de grandes feuilles douces semblables à celles de l'érable, portées par des cannes hérissées (mais sans aiguillons). Indigène des lisières de forêt et des pentes rocheuses de l'est de l'Amérique du Nord, elle drageonne en colonies lâches de 3 à 6 pieds de haut et compte parmi les rares arbustes du genre Rubus tolérants à l'ombre et à floraison spectaculaire. Le fruit agrégé rouge et aplati qui suit est comestible mais sec et plein de pépins ; la plupart des jardiniers cultivent cette plante pour la floraison et pour son beau feuillage dépourvu d'épines.
Review: Source-backed
Climate fit: moderate (46/100)
Pollinator
Structure
Border
Light
Full sun / Part shade
Water
Consistent moisture
Mature size
36-72" tall · 27" apart
Hardy in zones
3a-8b
brutally cold to frosty winters
Native in Illinois
No

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A documented larval host for the Io moth — 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.
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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). Ronce odorante (Rubus odoratus). Retrieved 2026, June 13, from https://plotwright.garden/plants/rubus-odoratus
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

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