Oleander Plants

Yes, every part of an oleander plant is poisonous if eaten, so it’s important to be cautious, especially around young children and pets. For this reason, you should also avoid burning any trimmings as the smoke will be harmful too. Simply growing or handling the plant is generally safe, though the sap is mildly toxic and can cause irritation to the skin, so it's advisable to wear gloves and wash your hands afterwards.

The best time to prune oleander in the UK is late spring to early summer, once the risk of frost has passed. Light shaping is usually all that’s needed, removing any dead, diseased or damaged growth. Avoid pruning hard in autumn or winter, as new growth may be damaged by cold.

Oleanders begin to flower in early summer, producing clusters of vibrant blooms for many weeks. In a warm, sheltered spot, they often keep the display going right into early autumn.

Oleanders love sunshine, warmth and well-drained soil, mimicking their Mediterranean heritage. Give them a bright, sheltered position, water regularly during summer and feed every couple of weeks to support flowering. In winter, protect container plants by moving them to a frost-free place or insulating the pot in situ.

Yes, oleanders are evergreen in mild conditions, retaining their glossy leaves all year. In colder snaps, they may drop a few leaves but usually they recover well when temperatures warm up.

Yes, oleander can grow well in the UK with the right care. They thrive in the warmer parts of the country and do best in pots or sheltered microclimates. The key is protecting them from frost and giving plenty of sun, so south-facing walls, coastal gardens and sunny patios are ideal.