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Hémérocalle fauve
Habit (mature) · George Chernilevsky / Wikimedia Commons · Public domain
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Hémérocalle fauve

Hemerocallis fulva
Une vivace robuste et vigoureuse, à port en touffe — la classique "hémérocalle fauve" ou "lis des fossés" orange que l'on voit naturalisée le long des bords de routes et des anciennes fermes. Chaque fleur orange rouille, en forme de trompette, s'ouvre pour une seule journée, mais de hautes hampes ramifiées (jusqu'à 3-6 feet) ouvrent des fleurs fraîches en succession du début au milieu de l'été, au-dessus d'un feuillage arqué en forme de lanière. Originaire de l'Asie de l'Est, et non de l'Amérique du Nord; la forme couramment cultivée est un triploïde stérile qui ne produit pas de graine mais se propage agressivement par d'épais rhizomes, formant des colonies denses. Réputée increvable et adaptable, mais plantez-la en sachant qu'elle s'étendra.
Review: Source-backed
Climate fit: moderate (58/100)
Filler
Border
Pollinator
Light
Full sun / Part shade
Water
Moderate water
Mature size
36-72" tall · 24" apart
Hardy in zones
3a-8b
brutally cold to frosty winters
Native in Illinois
No

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La forme couramment cultivée de Hemerocallis fulva est un triploïde stérile qui produit peu ou pas de graine viable; ses fleurs voyantes offrent tout de même du nectar aux abeilles, papillons et colibris, mais la plante se reproduit et se propage presque entièrement par rhizomes plutôt que par graine.

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). Hémérocalle fauve (Hemerocallis fulva). Retrieved 2026, June 13, from https://plotwright.garden/plants/hemerocallis-fulva
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
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