Plants & trees

Oleander

Nerium oleander

An oleander shrub with narrow leathery leaves and clusters of pink flowers

Photo: Alvesgaspar · CC BY 2.5 · via Wikimedia Commons

Where
Coco town, Your garden
When
Flowers most of the year
Size
A dense shrub to about 4 metres
Should I worry
Take it seriously
All parts are toxic to people and animals and affect the heart. Do not burn the clippings. Keep it away from grazing pets and small children who put things in their mouths.

The tough hedge with the narrow leaves and the pink, white or red flowers, along the roadside, around the pool, at the edge of the parking lot. It survives heat, salt, drought and neglect, which is why it is everywhere. It is also poisonous from root to petal.

Where you’ll see it

Roadsides, hedges, gardens and hotel grounds across the coast. It is one of the most planted ornamental shrubs in hot climates worldwide.

What to know

Oleander contains cardiac glycosides, the same family of compounds as digitalis, and all parts are toxic. It is bitter enough that accidental poisoning of adults is uncommon, but children and pets are a different matter, and the smoke from burning clippings is dangerous too. Prune in gloves, bag the cuttings, and do not plant it where a dog grazes or a toddler roams. Left alone it is a good, hard-working hedge.

Questions people ask about this one

How poisonous is oleander?

Very. It contains compounds that act on the heart, and eating leaves or flowers can cause vomiting, an irregular heartbeat and worse. Poisonings are rare because it tastes terrible, but children, dogs and horses are at risk, and the smoke from burning it is toxic. Handle clippings with gloves and put them in the rubbish.

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