Garden · Plants · Mediterranean
Oleander in a Pot care, overwintering and the most beautiful varieties
Whoever has an oleander on the terrace knows this feeling: you sit in the morning with your coffee, the oleander blooms in deep pink or luminous white, and for a moment you could imagine you were in Provence. Oleander is the most dramatic terrace plant I know – and simultaneously one of the most carefree. Important note: oleander is poisonous – all parts of the plant. Please plan accordingly with children and pets.
Last updated: 2026-06-03
Location, pot and watering as much sun as possible
Oleander loves full sun and warmth – the more the better. In a pot: at least 20-30 litres, drainage hole essential. In summer it can need daily or even twice-daily watering. No standing water in the saucer.
1 · Pruning and overwintering the most important care steps
Oleander blooms on the current year's growth – so the more new shoots, the more blooms. In spring you can prune boldly – down to half or even shorter. Oleander then breaks into vigorous new growth and blooms all the more richly in summer. Always wear gloves when working with oleander.
Oleander is only hardy to about -5°C. It must go into winter quarters in Germany. Bright and cool, between 5-10°C. Almost no water and no fertiliser. Back outside only when no more night frosts are expected (from mid-May).
Frequently Asked Questions quick and clear answers
Is oleander poisonous?
Yes, strongly poisonous. All parts of the plant are toxic, including the water in the saucer. Wear gloves when pruning. Do not place within reach of children or pets.
How do you overwinter oleander?
Bright and cool at 5-10°C – stairwell, cool room or winter garden. Barely water, do not feed. Back outside from mid-May when no more night frosts are expected.
Why is my oleander not flowering?
Most common causes: too little sun, too little fertiliser, no spring pruning. Oleander needs full sun, regular feeding and pruning for rich blooms.
About the author
Jona · Villa Bloom & Co.
I write about country house style, garden, terrace and cosy living – from genuine conviction and personal experience. Everything I recommend here I have tried myself. More about me →