Oleander, a large upright evergreen shrub with narrow dark green leaves and red flower clusters, by a block wall

Mixed Oleander

Nerium oleander
Categories:
Shrubs  ·  
Screening & Hedge Shrubs
Light
Full sun
Water
Low to moderate once established; water deeply, then allow the upper several inches of soil to dry. Water more regularly during establishment and prolonged summer heat.
Size
8-12 ft tall × 8-12 ft wide
Habit
Upright shrub
Toxicity
Toxic — Pets Humans & Livestock
Description
A tough, flowering evergreen shrub well suited to Phoenix heat. ‘Mixed’ generally indicates assorted flower colors or cultivars rather than one distinct cultivar.
Bloom Time
Spring through fall
Deciduous / Evergreen
Evergreen
Special Features
Drought Tolerant, Heat Tolerant, Screening / Privacy, Toxic (see detail)
Growth Rate
Fast
Growth Habit
Upright shrub
Mature Size
8-12 ft tall × 8-12 ft wide
Flower Color
White / pink / red / salmon / yellow (varies by cultivar)
Foliage Color
Dark green
Landscape Use
Hedge / Screen, Specimen / Accent
Garden Style
Hedge / Formal
Soil
Alkaline Tolerant, Sandy / Rocky, Well-Drained
Companion Plants
Deer grass, Desert spoon, Red yucca, Texas sage, Trailing lantana
Toxic — Pets Humans & Livestock
All parts highly toxic to pets, livestock, and humans if ingested; smoke and sap are also hazardous
Care Instructions

Light: Full sun for best flowering; tolerates light shade.

Water: Low to moderate once established; water deeply, then allow the upper several inches of soil to dry. Water more regularly during establishment and prolonged summer heat.

Soil: Well-drained soil; tolerates sandy, clay, and alkaline soils, but avoid persistently saturated conditions.

Mature size: Typically 8–15 feet tall and 6–12 feet wide; size varies with the cultivars included.

Bloom: Spring through fall, with repeated flowering during warm weather.

Evergreen / deciduous: Evergreen.

Growth rate: Fast with adequate water and warmth.