Bloomipedia
Oleander (Nerium oleander)
Photo: Andrew J. Crawford via iNaturalist · CC0 · resized

Flower profile

Oleander

Nerium oleander

Introduced in the lower 48

Oleander is a flowering plant that USDA PLANTS lists as introduced in the lower 48 states.

11states
478SC sightings*
4,537U.S. sightings*

*iNaturalist research-grade observations, as of October 17, 2026.

On our lists for: South Carolina

Quick look

Nerium oleander, the oleander, is a shrub or small tree native to the Mediterranean region east to southern Asia, from Morocco and Portugal east to India and Myanmar; the Flora of China also cites it as native in Yunnan in China. It is the only species currently classified in the genus Nerium, belonging to subfamily Apocynoideae of the dogbane family Apocynaceae.

  • It belongs to the Apocynaceae family. iNaturalist
  • USDA PLANTS describes it as a shrub / a tree with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as introduced in the lower 48 states and records it in 11 states. USDA PLANTS
  • USDA PLANTS lists its flower color as red. USDA PLANTS
  • USDA PLANTS gives its bloom period as summer. USDA PLANTS
  • USDA PLANTS lists a mature height of about 12 ft. USDA PLANTS
  • iNaturalist has 478 research-grade sightings of it in South Carolina, ranking #76 among the 111 flowers on our South Carolina list. iNaturalist

Oleander gift ideas

Handmade oleander gifts from independent makers.

When does it bloom?

Flowering records by month in South Carolina (iNaturalist research-grade observations marked “Flowering”) (18 records)

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
GNR Not yet ranked worldwide. NatureServe
South Carolina
No list South Carolina has no state law listing endangered or threatened plants, so we show NatureServe's South Carolina ranks instead. NatureServe has no South Carolina rank for it.
Rare elsewhere
No other U.S. state ranks it S1, S2, SH or SX.

Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.

Can you eat it?

For peoplePoisonous to people

NC State Extension lists it as poisonous to humans (severity: high). Poisonous parts: bark, flowers, fruits, leaves, roots, sap/juice, seeds, stems. Symptoms they list: “Highly toxic, may be fatal if eaten! Nausea, vomiting, stomach pain, dizziness, slowed pulse, irregular heartbeat, dilation of pupils, bloody diarrhea, and drowsiness, depression, death. Poisonous either fresh or dry.” NC State Extension

For petsToxic to dogs, cats and horses

ASPCA's entry “Oleander” (Nerium oleander) lists it as toxic to dogs, cats and horses. Signs include: Drooling, abdominal pain, diarrhea, colic, depression… ASPCA

🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.

Where does it grow?

USDA PLANTS records oleander in 11 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Alabama, Arizona, California, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Texas, Utah.

More South Carolina flowers

Sources