Grey mould alert
Maintaining some air movement in the greenhouse or conservatory, even when the weather is cold, will help to reduce problems with fungal diseases such as Botrytis (fluffy grey mould). Opening vents slightly (but not enough to create damaging draughts) in the morning, and then closing them in the early afternoon to conserve heat, will offer enough ventilation to help keep fungal problems at bay.
Repot sweet peas
Sweet peas sown in autumn can be potted on. Place them on a sunny windowsill, or on a high shelf in the greenhouse in as light a situation as possible to prevent them getting leggy. Watch out for aphid attack.
Start sowing seeds
Sow hot chilli varieties
Time to start sowing chillies in a heated propagator, especially hot varieties, which need a very long growing season to ripen.
Clean your trays and pots
This is a good time to clean all your old pots and seed trays so that they are ready for next spring’s flurry of activity. Thorough cleaning will cut pest and disease problems and will make your propagation and sowing yield much greater.