Field ManualAll plants

Turmeric
Curcuma longa L.
Family: Zingiberaceae
Pet & Human Safety
People: Skin irritant to peoplePets: Not on the ASPCA lists as we read them
ASPCA has no page found for turmeric, so no pet verdict. Not a statement that it is safe. NC State has no pet-toxicity line.
Poison control
If someone has collapsed, cannot be woken, is having a seizure or has trouble breathing, call 911 now. For any other possible poisoning, call Poison Help: 1-800-222-1222.
Emergency number source: U.S. federal law (47 U.S.C. § 251(e)(3)), read 2026-10-07.
Naturalist Lore
Historical Background & Breeding Lore
The history of this plant and its name, and how it was bred, where we have them.
Get the app: coming soonCare
- Hardiness zones
USDA zones 8 to 11 (NC State). In colder areas grow as an annual or lift the rhizomes in fall and store them cool and dry. UF/IFAS: dies back in Florida winter freezes and returns reliably in late spring.
- Water needs
Moisture "medium to wet"; hot, humid conditions (NC State)
- Mature size
About 3 ft tall (UF/IFAS); NC State lists height 3 to 4 ft and width 3 to 4 ft, with leaves up to 40 inches long. Spacing: UF/IFAS: 15 inches apart in the row and 15 inches between rows; rhizome pieces 1 to 1.5 inches long with at least one eye, planted about 1 inch deep, early spring.
How to prepare the soil, when and what to feed, and how and when to prune where that applies.
Get the app: coming soonAnatomy & Guilds
Botanical Anatomy & Characteristics
How the flowers and leaves are built and which pollinators visit, where we have them.
Get the app: coming soonField Doctor
Field Doctor
What can go wrong with this plant and what to do about it, where we have them.
Get the app: coming soonVintage Plates
Vintage Plates
Old botanical drawings from public libraries are in the app, for plants where we have them.
Get the app: coming soonSources
- Kew World Checklist of Vascular Plants (WCVP) name file, dated 2026-06-04
- NC State Extension Gardener Plant Toolbox, Curcuma longa
- UF/IFAS Gardening Solutions, Turmeric
- ASPCA page name /turmeric (no plant page found)
- ABC Gardening Australia, Vegie Guide Zones (no plant facts found)
- UF/IFAS EDIS MV009 (checked: HTTP 410)