Field ManualAll plants

Photo: J.M.Garg, via Wikimedia CommonsLicense: CC BY 3.0

Turmeric

Curcuma longa L.

Family: Zingiberaceae

Pet & Human Safety

People: Skin irritant to peoplePets: Not on the ASPCA lists as we read them
Human edibility
Edible
Edible parts
rhizome, leaves (as a wrap)
Hazardous parts
Not yet checked.
Preparation
NC State: rhizomes boiled, dried, peeled and ground for the spice. UF/IFAS: fresh grated or ground; no times or temperatures read, none given here.
Hazard type
skin staining / possible allergic skin reaction
Hazard route
skin
How complete this information is
The safety information on this page is partial. Where a source covers a point, it is shown; where none does, the page says so.

Toxic to pets
No ASPCA entry found.

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.

Look-alike warning
Could be mistaken for Plants that share its name. To tell them apart: 'Turmeric' here is Curcuma longa, the cooking spice; other Curcuma species sold as ornamentals were not checked..

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.

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Care

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.

Soil & Drainage
Pruning & Flush Rhythm
Feeding Schedule

How to prepare the soil, when and what to feed, and how and when to prune where that applies.

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Anatomy & Guilds

Botanical Anatomy & Characteristics

How the flowers and leaves are built and which pollinators visit, where we have them.

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Field Doctor

Field Doctor

What can go wrong with this plant and what to do about it, where we have them.

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Vintage Plates

Vintage Plates

Old botanical drawings from public libraries are in the app, for plants where we have them.

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Sources

  1. Kew World Checklist of Vascular Plants (WCVP) name file, dated 2026-06-04
  2. NC State Extension Gardener Plant Toolbox, Curcuma longa
  3. UF/IFAS Gardening Solutions, Turmeric
  4. ASPCA page name /turmeric (no plant page found)
  5. ABC Gardening Australia, Vegie Guide Zones (no plant facts found)
  6. UF/IFAS EDIS MV009 (checked: HTTP 410)

How we choose sources

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