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Curcuma

Curcuma

Curcuma longa
Vivace rhizomateuse herbacée tropicale de la famille du gingembre, cultivée dans le monde entier pour ses épais rhizomes ramifiés qui — bouillis, séchés et moulus — donnent l'épice jaune-orangé vif. La touffe de feuillage s'élève à 3-4 feet de grandes feuilles lancéolées à elliptiques plissées, semblables à celles du canna, pouvant atteindre 40 inches de long, surmontées en été de courts épis denses de fleurs jaune pâle parmi des bractées rosées. Les fleurs sont stériles, aussi la plante est-elle multipliée exclusivement par division de rhizomes.
Climate fit: narrow (31/100)
Edible
Structure
Container
Light
Full sun / Part shade
Water
Consistent moisture
Mature size
36-48" tall · 18" apart
Hardy in zones
8a-11b
cold to nearly frost-free winters
AHS heat range
9-12
Plant range authored in AHS heat-zone terms.
Native in Illinois
No
Le curcuma est cultivé pour ses rhizomes, qui sont bouillis, séchés, pelés et moulus en épice jaune-orangé vif, principal ingrédient de la poudre de curry (Missouri Botanical Garden PlantFinder ; NC State Plant Toolbox).

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
Won't grow here
2050
Zone 7a
Plotwright
Projected zone for this same location in 2050 (2041-2070) using SSP3-7.0 (regional rivalry).
Won't grow here
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.
Out of range today and still out of range 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). Curcuma (Curcuma longa). Retrieved 2026, June 14, from https://plotwright.garden/plants/curcuma-longa
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-SA 4.0
Backs 1 field
Image
NC State Extension Gardener Plant Toolbox
University extension service