January

In The Vegetable Garden This January

January is a quiet but important month for the vegetable garden. It’s all about preparation, protection, and planning rather than heavy sowing.

🥕 Protect crops & soil 

  • Fleece overwintering vegetables (leeks, winter salads, broad beans) during hard frosts.
  • Harvest little and often—parsnips, Brussels sprouts, kale and leeks are sweeter after frost.
  • Keep soil covered with mulch, cardboard, or green manure to protect structure and nutrients.
  • Avoid walking on wet or frozen soil to prevent compaction.

🌱 Sowing & planting (weather permitting) 

  • Sow broad beans outdoors in milder areas or under cloches (varieties like ‘Aquadulce Claudia’).
  • Start onions, shallots and leeks from seed indoors or in a heated propagator.
  • Chit seed potatoes in a cool, light, frost-free place towards the end of the month.
  • Sow early salads (lettuce, mustard, cress) indoors or in a greenhouse.

🥬 Crop care 

  • Remove yellowing or damaged leaves from brassicas to reduce disease.
  • Earth up leeks if soil conditions allow.
  • Check stored crops (potatoes, onions, squash) and remove any showing signs of rot.

🌾 Soil improvement 

  • Add well-rotted manure or compost to empty beds on dry days.
  • Test soil pH—ideal time to apply lime if needed (especially for brassica beds).
  • Improve drainage in heavy clay soils using organic matter.

🐦 Pests & wildlife 

  • Net brassicas to protect from pigeons.
  • Set traps for mice and rats near stored produce.
  • Feed birds—they’ll repay you by eating pests later in the year.

📋 Plan for the year ahead 

  • Plan crop rotation to prevent disease build-up.
  • Buy seeds early for best choice.
  • Clean pots, trays and tools to prevent disease carryover.

 

This Month's Key Tips
  • Now is the ideal time to start 'chitting' seed potatoes ready for planting in spring.
  • Plant any seeds ready for early spring season.
  • Clean old pots and seed trays ready for sowing and planting.
  • Start forcing rhubarb.
  • Recycle your Christmas tree by shredding it for mulch.