Also known as Adelfa · Common Oleander · Nerium
Safety note: This plant may be toxic to humans and pets. See toxicity details.
Oleander (Nerium oleander) is a beautiful, evergreen shrub known for its fragrant, colorful flowers, but it is highly toxic.
At-a-glance light, water, soil, and growing conditions from plant data
Full sun
100% intensity
Requires at least 6-8 hours of direct sunlight daily for best flowering and growth.
Allow soil to dry slightly between waterings
50% intensity
Water thoroughly when top 2-3 cm of soil is dry. Reduce in winter.
Well-drained soil
50% intensity
Prefers warm temperatures
75% intensity
Thrives in temperatures between 15°C and 29°C. Can tolerate brief periods of cooler weather.
Outdoor
50% intensity
Feed during growing season
50% intensity
Use a balanced liquid fertilizer diluted every 4-6 weeks from spring to summer.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 5/5 intensity |
| Toxic for pets | Yes 5/5 intensity |
| Edible | No |
All parts of the plant are highly toxic if ingested.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Oleanders thrive with consistent moisture, especially during hot weather. Water thoroughly when the top 2-3 cm of soil feels dry. Reduce watering in winter, allowing the soil to dry out more between waterings.
Avoid waterlogged conditions, which can lead to root rot.
Prune oleanders after flowering to shape the plant and remove dead or overgrown branches. This encourages bushier growth and more blooms. Major pruning can be done in late winter or early spring before new growth begins.
Wear gloves, as all parts are toxic.
Propagate oleanders from semi-hardwood cuttings taken in summer or autumn. Dip the cut end in rooting hormone and plant in a well-draining potting mix. Keep moist and warm until roots form.
This method is effective for establishing new plants.
Repot young oleanders every 2-3 years in spring, moving them to a slightly larger container. Mature plants may only need repotting every 4-5 years. Use a well-draining potting mix.
Repotting helps refresh the soil and provide space for root growth.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Oleander (Nerium oleander)
Where Oleander (Nerium oleander) is found
Density
Tap map to explore
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Gentianales |
| Family | Apocynaceae |
| Genus | Nerium |
| Species | Nerium oleander |
Answers based on plant encyclopedia data
