Here are some gardening tasks you can do in January in the UK:

1. Prune deciduous trees and shrubs: This is the perfect time to prune any deciduous trees and shrubs while they are still dormant. Pruning helps to control the size and shape of the plant, improve flowering and fruiting, and remove any dead or diseased wood.
2. Clear away fallen leaves: Remove fallen leaves from the lawn, flower beds, and paths to prevent them from becoming slippery and to reduce the risk of fungal diseases developing.
3. Prepare soil for spring planting: If the soil isn’t too wet or frozen, you can prepare your soil for spring planting. Add organic matter such as compost or well-rotted manure to improve soil structure, fertility, and drainage.
4. Force bulbs for early blooms: You can force bulbs such as hyacinths, narcissus, and amaryllis indoors for early blooms. This can help to bring some colour and fragrance into your home during the winter months.
5. Check winter protection: Check any winter protection you have in place, such as fleece or mulch, and make sure it’s still in place and secure. Remove any damaged or rotting material and replace it with fresh material.
6. Plan for the upcoming growing season: January is a great time to start planning for the upcoming growing season. Decide what plants you want to grow, order seeds and other supplies, and start sketching out your garden design.
7. Clean and sharpen tools: Clean and sharpen your gardening tools to get them ready for the upcoming growing season. This helps to prevent rust and damage and ensures that your tools are in good working order when you need them.
8. Feed the birds: Provide food and water for birds that are overwintering in your area. This helps to support the local wildlife and can also help to reduce pest problems in your garden.