Seeds to Sow in January

by Jamie on 7th January 2025 · 1 minute

As winter maintains its grip outdoors, January presents the perfect opportunity for gardeners to begin their growing journey indoors. While the ground may be frozen, this month is ideal for starting several vegetables that will give you a head start for the year.

Starting seeds indoors during January offers several advantages. Many vegetables need a longer growing season to reach maturity, and beginning them indoors gives them the necessary head start.

What to Sow in January

Under Cover/Indoors

Onions

January is an excellent time to start onions from seed indoors. These kitchen staples need a long growing season to develop good-sized bulbs. Unlike many seeds, onions benefit from generous light even during germination, so avoid covering the seeds too deeply.

Peppers and Chilies

These heat-loving plants have a long growing season and benefit from an early start. They need temperatures of 21-27°C to germinate and should be kept in a warm, bright location.

Aubergines

Similar to peppers, aubergines require a long growing season. Start them now in warm conditions for transplanting in late spring. Aubergines can be tricky to germinate and need more heat than peppers or chillies.

Hardy Herbs

Begin herbs like:

  • Parsley (takes several weeks to germinate)
  • Oregano
  • Thyme
  • Sage

Direct Sowing Outdoors (Weather Permitting)

If you have a polytunnel or cold frame, or live in a milder climate, you can start sowing:

Broad Beans

These hardy legumes can withstand winter conditions. Try varieties like 'Aquadulce Claudia' or 'The Sutton' for reliable results.

Early Peas

Choose hardy varieties like 'Meteor' or 'Kelvedon Wonder' for early crops.

Tips for Successful January Sowing

1. Light Management

With shorter winter days, supplemental growing lights may be necessary. Position them 2-3 inches above seedlings for 14-16 hours daily.

2. Temperature Control

Most seeds germinate best at around 18-24°C. Use a heat mat if your home is cooler.

3. Moisture Balance

Keep soil consistently moist but not waterlogged. Consider using a humidity dome for better moisture control.

4. Tracking Progress

Use Seed Sort to monitor your seedlings' progress, take photos and make notes at different stages.

January might seem too early to start gardening, but it's the perfect time to begin your growing journey indoors. By starting these seeds now, you'll be well-positioned for a productive growing season. Remember to track your progress in Seed Sort to ensure the best possible results for your early-started plants.