Field ManualAll plants

Sweet/Bell Pepper
Capsicum annuum L.
- Warm-season annual
- Self-pollinating
Pet & Human Safety
People: No hazard foundPets: Not on the ASPCA lists as we read them
No dedicated ASPCA entry exists for Capsicum annuum (garden bell/sweet pepper), confirmed as of 2026-09-28. Do not confuse with ASPCA's 'Ornamental Pepper' page, which covers Solanum pseudocapsicum (Jerusalem cherry), an unrelated toxic plant with a similar common name. No toxicity verdict is recorded here rather than guessing true or false.
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
Warm-season annual in every US zone; frost-killed, so timing follows the local last-frost date rather than a hardiness number.
- Mature size
Typically 18-24 in. tall and about as wide; stays compact compared to an indeterminate tomato.
- Family
Solanaceae (nightshade family; same family as tomato, potato, and eggplant, which is also why Clemson HGIC's soil advice says not to replant peppers where any of those grew previously)
- Where it comes from
Native to Mexico and Central/South America, cultivated there for thousands of years before European contact.
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.
Get the app: coming soonSources
- Clemson HGIC, Pepper
- University of Maryland Extension, Sunscald on Vegetables
- University of Maryland Extension, Growing Peppers in a Home Garden
- ASPCA, Toxic and Non-toxic Plants: Ornamental Pepper
- UF/IFAS Gardening Solutions, 'Applying Fertilizer to Vegetables'
- NC State Extension Gardener Plant Toolbox - Capsicum annuum Grossum Group (Bell Pepper)
- NC State Extension Gardener Plant Toolbox - Capsicum annuum (species page)
- National Capital Poison Center (poison.org) - Capsaicin: When the chili is too hot