Looking to grow an olive tree indoors in the UK? Below is a comprehensive FAQ created by a horticultural specialist to help you keep your indoor olive tree healthy, vibrant and thriving year-round.
1. Can you grow olive trees indoors in the UK?
Yes, you can successfully grow olive trees indoors in the UK if you provide enough light, proper watering and good airflow. Indoor olive trees benefit from protection against frost yet still bring Mediterranean beauty to UK homes.
If you’re looking for established olive trees for sale in the UK, explore our full collection.
2. How much light does an indoor olive tree need?
Indoor olive trees need at least 6 hours of direct sunlight daily. A south-facing window is ideal. If your home doesn’t get enough natural light, use a grow light for olive trees indoors to support strong, healthy growth.
3. How often should I water an olive tree indoors?
Water your indoor olive tree every 10–14 days in summer and every 2–3 weeks in winter, letting the top layer of soil dry between waterings. Overwatering is a common problem for indoor olive tree care.
4. Why is misting important for indoor olive trees?
Misting is one of the most important but overlooked aspects of growing olive trees indoors—especially in the UK where indoor heating causes dry air. Misting helps to:
- Improve humidity around the foliage
- Prevent leaf curl and browning
- Maintain healthy leaf pores and moisture balance
- Reduce leaf drop
- Help prevent spider mites and other pests that thrive in dry conditions
For best results, mist your olive tree 2–3 times a week using a fine spray. This mimics the humid Mediterranean breezes olive trees naturally enjoy.
5. Will misting an indoor olive tree cause rot or fungal issues?
Not when done correctly. Use a light mist, avoid soaking the leaves, and ensure the room is well ventilated. Mist in the morning so the foliage dries naturally throughout the day. Proper misting supports healthier growth and reduces stress.
6. What temperature do indoor olive trees prefer?
Indoor olive trees grow best between 12°C and 20°C. Keep them away from radiators, fireplaces and draughts. A slightly cooler room in winter helps mimic the olive tree’s natural seasonal cycle.
7. What soil is best for an olive tree grown indoors?
Use a free-draining, gritty compost such as a mix of:
- John Innes No. 3
- Multi-purpose compost
- Horticultural grit or perlite
Good drainage is essential for indoor olive trees to prevent root rot.
8. How often should I feed an indoor olive tree?
Feed every 4–6 weeks from March to September using a balanced or Mediterranean plant fertiliser. Reduce feeding in winter when the tree’s growth naturally slows.
9. Can an indoor olive tree produce olives?
It’s possible but less common. To encourage fruiting, your indoor olive tree needs:
- Strong, consistent light
- A cool winter rest period
- Occasional outdoor exposure in warmer months for pollination and vigour
Most indoor growers keep olive trees for their attractive evergreen appearance rather than fruit production.
10. How do I stop pests on indoor olive trees?
Healthy indoor olive trees—kept in good light, watered correctly and regularly misted—are naturally more resistant to pests. Keep an eye out for spider mites, scale and aphids. Wipe leaves occasionally to remove dust and discourage pest build-up.
