Oleander
Also known as
Rose Bay, Sweet Scent
Keep this plant’s care guide close at hand.
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Nerium oleander is a highly ornamental shrub known for its spectacular display of vibrant, trumpet-shaped flowers throughout the summer. Commonly growing between 2 to 5 meters tall, this evergreen shrub features leathery, lance-shaped leaves which arrange themselves in whorls. While immensely popular for its decorative appeal, oleander is equally notorious for its toxicity. Every part of the plant contains harmful compounds known to severely affect humans and animals if ingested. This tough plant is drought-tolerant, salt-tolerant, and thrives in a range of environmental conditions, making it a popular choice for landscaping in warm climates.
Taxonomy
Properties & Requirements
How to care for Oleander
Water
Water oleander deeply but infrequently, allowing the soil to dry out slightly between waterings. Overwatering or poor drainage can lead to root rot, whereas under-watering might cause foliage to wilt. Adjust watering based on the season and local weather conditions.
Light
For best growth, plant oleander in an area that receives full sun to partial shade. Direct sunlight is optimal for flowering, but in hotter climates, light afternoon shade can prevent scorching.
Nutrients
For optimal growth, fertilize oleander with a balanced 10-10-10 or similar ratio fertilizer in early spring before new growth begins. Avoid over-fertilizing, as this can lead to excessive foliage with fewer flowers. A slow-release formula can help provide steady nutrition.
Temperature
Oleander thrives in warmer climates and is hardy in USDA zones 8 through 10. It can withstand minor frosts but should be protected from prolonged exposure to temperatures below freezing. Optimal temperature range is between 20°C to 30°C.