If your lemon tree is growing in straight compost, that is likely to be part of the problem. Lemon trees in pots do best in a free-draining potting mix, not compost alone.

Repot into a free-draining mix
It would be beneficial to repot your lemon tree into a large container using Daltons Garden Time Fruit & Citrus Mix - which can be used for potted or inground citrus and frut trees. This will provide a more suitable growing medium, as straight compost can become too wet and soggy over winter.

Feed regularly
Citrus are known as heavy feeders and need regular applications of fertiliser. Apply Daltons Premium Fruit & Citrus Fertiliser every 4–6 weeks from February until mid-April, then begin again from October through to Christmas. Water the fertiliser in well so the nutrients move into the root zone.

Winter care and watering
Because citrus are frost tender, it may be necessary to provide some shelter for your lemon tree during the colder winter months. One of the advantages of growing citrus in a pot is that it can be moved more easily when needed.

As with all potted plants, make sure it is watered regularly, as containers dry out much faster than garden soil, especially over summer.

For more tips on growing healthy citrus, see our How to Grow Citrus Guide.