Sow
Early sowings of suitable winter salads may still work in milder areas, but established modules are more reliable as days shorten.
Grow
Plant winter lettuce modules with space for air movement. Move tender plants into an appropriate frost-protected or heated space.
Harvest
Gather the last usable tomatoes and peppers before cold damages them. Pick autumn leaves lightly as growth slows.
Jobs this month
Clear exhausted crops and wash glazing safely. Check doors, fix loose panels and test thermostats before frost arrives.
Make your own growing notes
Record what you sowed, your overnight minimum temperature and how the plants responded. Check the compost below the surface before watering: the same calendar date can bring very different conditions from one year to the next. Use the seed packet’s variety-specific guidance alongside this monthly plan.
For tender crops, distinguish the warmth needed for germination from the conditions needed after seedlings emerge. For winter leaves, choose varieties intended for the season and allow for slower growth as daylight falls.
Further reading: RHS greenhouse vegetable growing.
What’s happening in your greenhouse?
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