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Oleander — Shrubs

Nerium

Full sun, light watering — fine in mild parts of the UK.

Photograph of Oleander
iNaturalist
Plant out
May
In flower
Jun, Jul, Aug, Sep, Oct
Sun
Full sun
Water
Low
Difficulty
Demanding
Hardiness
H3
Season
summer
Height
250–400 cm
Spacing
150 cm
Pets
Toxic to pets

Growing notes

Grows to 2.5-4 metres. Space about 100-150cm apart. In flower Jun-Oct.

Toxic to pets

Oleander is one of the most poisonous garden plants: every part, leaf, stem, flower and sap, can be dangerous to a person or a pet that eats it because it affects the heart, and smoke from burning the prunings is harmful too. Never burn the clippings, and keep children and pets from chewing any of it. If anyone or any animal has swallowed any part, get help at once: medical advice for a person, a vet for an animal.

→ NHS 111 for a person; your vet or the Animal PoisonLine for an animal