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Liseron des champs
Convolvulus arvensis
Le liseron des champs est une plante grimpante vivace basse, volubile et à racines profondes de la famille des belles-de-jour, aux feuilles en forme de flèche et aux jolies fleurs en entonnoir qui s'ouvrent du blanc au rose tendre. Ne vous laissez pas séduire : Plotwright la présente comme une fiche pour connaître l'ennemi, pas comme une plante à cultiver. Convolvulus arvensis est l'une des mauvaises herbes les plus difficiles à éradiquer au monde. Un seul pied bâtit un système vivace de racines et de rhizomes qui peut dépasser 20 pieds de profondeur, se régénère à partir du plus petit fragment cassé et alimente une banque de graines dans le sol qui reste viable pendant des décennies. Il s'enroule autour des cultures, des vivaces et des arbustes et les étouffe, grimpant sur tout ce qu'il touche. Il est classé comme mauvaise herbe nuisible dans de nombreux États américains. Apprenez à le reconnaître, ne le plantez jamais et traitez toute colonie comme un problème de lutte à long terme. Sa seule vertu honnête est que ses fleurs constituent une source de nectar précoce et durable pour certaines abeilles.
Climate fit: moderate (69/100)
Light
Full sun / Part shade
Water
Moderate water
Mature size
3-6" tall · 18" apart
Hardy in zones
2a-10b
brutally cold to mild winters
Native in Illinois
No
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Ce n'est pas une plante alimentaire.
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 45 ecoregions — 45 climate-resilient through 2070. Best matches first.
Appalachian mixed mesophytic forests
›
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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California coastal sage and chaparral
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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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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). Liseron des champs (Convolvulus arvensis). Retrieved 2026, June 14, from https://plotwright.garden/plants/convolvulus-arvensis
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