What to Do in the Garden in January

January may be cold and often wet, but it remains one of the most important months in the gardening calendar. With plants fully dormant, this is the ideal time to complete winter pruning, plant bare-root trees and roses, and prepare the garden for the growing season ahead. Careful planning and maintenance now will pay dividends once spring arrives.

Key Gardening Tasks for January

• Plant bare-root roses, shrubs, hedging and trees while dormant
• Prune apple and pear trees during the winter pruning window
• Take hardwood and root cuttings from suitable plants
• Protect brassicas and crops from pigeons using netting
• Clean, sharpen and service tools and equipment
• Force rhubarb for an early spring harvest

Flowers

January is an excellent month for planting bare-root roses, ornamental shrubs and hedging, provided the soil is workable and not frozen. It is also a valuable time for propagation, garden tidying and disease prevention.

January Flower Gardening Tasks

• Plant bare-root roses, shrubs, hedging and ornamental trees in frost-free conditions
• Take root cuttings from fleshy-rooted perennials such as oriental poppies, acanthus and verbascum
• Buy snowdrops and hellebores in flower to establish reliable colonies
• Clear away collapsed or waterlogged perennial stems to prevent rot
• Take hardwood cuttings from deciduous shrubs such as forsythia, willow and dogwood
• Remove old hellebore foliage marked with black blotches to reduce leaf spot disease
• Check alpines are not smothered by fallen leaves or debris
• Deadhead winter bedding plants such as pansies to encourage further flowering
• Inspect stored bulbs and tubers regularly for signs of rot or dehydration
• Continue pruning climbing roses while plants remain dormant

Fruit and Vegetables

The deep dormant season makes January ideal for pruning fruit trees and preparing vegetable beds. Correct pruning now improves air circulation, plant health and future cropping.

January Fruit and Vegetable Tasks

• Winter-prune apple and pear trees, removing dead, damaged and congested branches
• Sort and organise seed supplies, discarding old or empty packets
• Plan crop rotation to reduce pests and improve soil fertility
• Prune gooseberries and redcurrants to maintain an open framework
• Clear old crops and weeds from vegetable beds
• Plant bare-root fruit trees, bushes and canes in suitable conditions
• Ensure brassicas are securely netted to prevent pigeon damage
• Force rhubarb by covering crowns with a bucket, forcing pot or bin
• Prune blackcurrants, removing around a quarter of the oldest stems
• Order seed potatoes, onion sets, shallots and garlic bulbs early

Greenhouse

A well-maintained greenhouse remains productive even in winter. January is the time to tidy, sow early crops and protect plants from frost while ensuring good ventilation.

January Greenhouse Tasks

• Sow winter salad crops for harvests within a few weeks
• Tidy the greenhouse and dispose of broken pots and old compost
• Move potted strawberry plants under cover to encourage early fruiting
• Check overwintering plants regularly for aphids and other pests
• Bring potted peach trees into the greenhouse to reduce peach leaf curl
• Maintain frost-free conditions using a thermostatically controlled heater
• Move potted camellias into an unheated porch or cool greenhouse to promote flowering
• Take root cuttings from plants such as phlox and Japanese anemones
• Begin sowing hardy annuals including cornflowers and cerinthe
• Ventilate on sunny days to reduce condensation and fungal disease

House Plants

Short days and dry central heating can stress houseplants in January. Careful watering, improved humidity and better light levels will help plants stay healthy.

January Houseplant Care Tasks

• Increase humidity around houseplants to counteract central heating
• Repot moth orchids after flowering if roots are overcrowded
• Reduce watering frequency, allowing compost to dry slightly
• Move houseplants to bright windowsills to maximise winter light
• Wipe dust from large-leaved plants such as snake plants and monstera
• Take leaf cuttings from African violets and begonias
• Inspect plants regularly for aphids, scale insects and mealybugs

Garden Maintenance and Wildlife Care

With growth at a standstill, January is ideal for structural maintenance, tool care and supporting garden wildlife through the harshest weather.

January Garden Maintenance Tasks

• Top up bird baths with fresh water and keep them ice-free
• Repair damaged or unstable fences and trellis
• Service lawn mowers and powered equipment while not in use
• Install bird boxes before the nesting season begins
• Clean, sharpen and oil garden tools
• Cut back overgrown ivy and climbers before birds start nesting
• Provide high-energy food for birds during cold weather
• Clear leaves, moss and algae from paths, patios and decking
• Scrub empty pots, seed trays and propagators thoroughly
• Clean bird feeders regularly to reduce the spread of disease