Sow
Sow winter lettuce, rocket, spinach and suitable oriental leaves. Use small batches and choose varieties labelled for autumn sowing.
Grow
Plant out established salad modules as summer crops finish. Check tender plants before bringing them inside, and keep them separate if pests are present.
Harvest
Pick ripe tomatoes, cucumbers and peppers regularly. Harvest healthy basil before cold nights, and use or preserve any surplus.
Jobs this month
Water earlier in the day, ventilate on mild days and gradually remove shading as light falls. Clean empty spaces and check your minimum thermometer.
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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