Planting seeds too early can backfire unless you have a setup that includes things like heated seed propagation mats, grow lights, and consistent regulated temperatures. I don’t. I do have a terrific enclosed south-facing verandah with lots of windows, but the days are still short here, without the amount of sun many seedlings need. This can make for spindly, weak plants that stretch towards the light, and that are unable to support the weight of their leaves. Also, the temperature is hardly consistent, given the blasts of cold air each time the door is opened.
That said, some seeds can be started by late January with just a little care.
Follow the link below to know what you can start planting: