Perfect time to sow most winter/spring bedding such as Bellis, Pansies, Polyanthus and wallflowers. You could also sow winter pot plants such as cineraria, calceolaria, primula obconica/malacoides and even cyclamen...you will need winter heat for the last 4 though

Why not try Primula malacoides? I grew these last year at this time and they bloomed (scented too) all through winter in pink and white. The flowers are like candleabra Primulas. Buy them from Chiltern seeds. Pot on when there are two proper leaves and water from below to avoid rotting.