Field ManualAll plants

Scarlet firethorn
Pyracantha coccinea
Family: Rosaceae
Pet & Human Safety
People: Toxic to peoplePets: Not on the ASPCA lists as we read them
ASPCA was searched by species and common names and has no page that assesses this plant. Dogs, cats, horses: none of the sources (NC State, Clemson, RHS) make a toxicity statement for pets, and the NC State page has no poison lines. That is a gap, not an all clear. NC State advises planting away from places where children and pets spend time because of the sharp spines.
PlotAndPetal cannot tell you whether a plant you found can be eaten. Only someone who can see the plant can identify it.
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 6a to 9b per NC State Plant Toolbox; USDA 6 to 9 per Clemson HGIC (zone 5 possible with a hardy variety)
- Light
Full sun to part shade.
- Water needs
low
- Mature size
US: NC State: 6 to 18 ft tall and 8 to 18 ft wide. Clemson: 10 to 15 ft tall and about 10 ft wide, growing very fast, sometimes more than 2 ft a year. Named varieties are smaller, for example 'Apache' about 5 to 6 ft and 'Lowboy' 2 to 5 ft (NC State).; UK: RHS: about 12 ft (4 m) tall and 12 ft (4 m) wide (whole genus).
- Where it comes from
NC State: south central and southern Europe east to Iran; native list includes Albania, Bulgaria, France, Greece, Iran, Italy, Lebanon-Syria, Spain, Switzerland, Turkey and others. Introduced in many US states. Clemson: native to southern Europe east to China (whole genus).
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 soon