While the British climate isn’t naturally suited to citrus, with the right care and conditions, lemon plants can thrive beautifully.
There’s something undeniably joyful about growing your own lemons. Their glossy evergreen leaves, fragrant blossoms, and vibrant fruit bring a touch of the Mediterranean to any UK garden or home. If you’ve visited Hildreth’s Garden Centre recently, you’ll see we’ve just had a delivery of them!
Here’s everything you need to know to grow and care for them.
Growing lemons in pots
In the UK, lemon plants are best grown in containers rather than directly in the ground. This allows you to move them indoors when temperatures drop.
- Pot size: Start with a medium-sized pot and repot as the plant grows. Ensure it has good drainage.
- Compost: Use a loam-based compost such as John Innes No.2, ideally mixed with some grit for added drainage.
- Position: Place your lemon plant in a sunny, sheltered spot – such as a patio, balcony, or greenhouse.
Light and temperature
Lemon plants love warmth and sunlight.
- Summer: Keep your plant outdoors in full sun from late spring to early autumn.
- Winter: Bring it indoors before temperatures drop below 10°C. A conservatory or bright windowsill is ideal.
- Avoid cold draughts and sudden temperature changes.
Watering and feeding
Getting the balance right is key to a healthy lemon plant.
- Watering: Keep the compost moist but not waterlogged. Allow the top layer to dry slightly between waterings.
- Feeding: Use a citrus fertiliser every 1–2 weeks during the growing season (spring and summer). Reduce feeding in autumn and winter.
Rainwater is preferable where possible, as tap water can sometimes be too alkaline.
Pruning and maintenance
Regular care will keep your lemon plant productive and attractive.
- Pruning: Lightly prune in spring to maintain shape and remove any dead or crossing branches.
- Cleaning: Wipe leaves occasionally to remove dust and improve light absorption.
- Repotting: Repot every 2–3 years to refresh the compost and allow for growth.
Pollination and fruit production
Lemon plants produce wonderfully fragrant white flowers, but indoor plants may need a helping hand to set fruit.
- Gently transfer pollen between flowers using a small paintbrush or cotton bud.
- Be patient – fruit can take several months to develop and ripen.
Common problems
Even with the best care, lemon plants can encounter a few issues:
- Yellowing leaves: Often caused by overwatering or lack of nutrients.
- Leaf drop: Usually due to sudden temperature changes or insufficient light.
- Pests: Watch for aphids, spider mites, and scale insects – these can be treated with insecticidal soap or by wiping leaves.
Winter care tips
Winter is the most challenging time for lemon plants in the UK.
- Keep plants in a bright, cool (but frost-free) space.
- Reduce watering, but don’t let the compost dry out completely.
- Avoid placing near radiators or heat sources.
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