Field ManualAll plants

Chickasaw plum
Prunus angustifolia
Family: Rosaceae
Pet & Human Safety
Toxic to people and pets
NC State tags this species as a problem for pets; the ASPCA lists plum (Prunus domestica) as toxic. There is no ASPCA page for this species. Keep it away from dogs and cats.
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
USDA 5a to 8b (NC State)
- Water needs
USDA NRCS: 'The plums are drought tolerant once established.'
- Mature size
Height 4 to 15 ft, width 4 to 20 ft (NC State); NRCS: shrub 3.3 to 9.8 ft, or small tree 14 to 25 ft at maturity. Spacing: NC State: promptly remove root suckers to prevent spread. No planting distance was found.
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.
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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
- NC State Extension Gardener Plant Toolbox, Prunus angustifolia
- USDA NRCS Plant Guide, Chickasaw plum (Prunus angustifolia), Plant Symbol PRAN3
- NC State Extension Gardener Handbook, ch. 15 Tree Fruit and Nuts (lead URL; plum not read in detail)
- ASPCA, Toxic and Non-toxic Plants: Plum (page is for Prunus domestica)
- Kew World Checklist of Vascular Plants (WCVP)
- ASPCA Toxic and Non-toxic Plants: Cherry (Checked October 2026)