Field ManualAll plants

Peanut
Arachis hypogaea L.
Origin: Central Brazil
- Warm-season annual
- MAJOR FOOD ALLERGEN (FDA)
- Nitrogen-fixing
Pet & Human Safety
People: Toxic to peoplePets: Not on the ASPCA lists as we read them
No pet-safety verdict is given, rather than a guess. For humans, NC State Extension itself flags this as a high-severity poison entry: peanut-allergic reactions can involve the skin, respiratory tract, and gastrointestinal tract from direct contact, cross-contact, or inhalation, with the toxic principle being seed storage proteins (Ara h 1-13) in the seed. This is an allergy risk, not a general-population toxicity risk: see the hazard information below.
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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- Hardiness zones
Herbaceous perennial grown as a warm-season annual everywhere.
- Water needs
Specific irrigation figures not given; NC State Extension Gardener Plant Toolbox did not specify.
- Mature size
9 in to 1.5 ft tall and wide; erect, prostrate, or spreading habit.
- Family
Fabaceae (legume family)
How to prepare the soil, when and what to feed, and how and when to prune where that applies.
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Botanical Anatomy & Characteristics
How the flowers and leaves are built and which pollinators visit, where we have them.
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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
Old botanical drawings from public libraries are in the app, for plants where we have them.
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