Flowers to sow in January include antirrhinum, begonia, geranium, gloxinia, lobelia, sweet pea and verbena. Some perennial plants, such as anemone, auricular, aquilegia, hollyhock and kniphofia, can also be sown at this time.
Sweet peas that have been raised from autumn sowings can be encouraged to form side shoots by pinching out the seedling tips.
Take a look at our propagators and propagation equipment to get the most from your seeds.
Head to our blog for more January gardening advice.