Sowing in January
Almost nothing happens outdoors in January, which is exactly what makes it the planning month. A few slow crops can be started on a windowsill, while lamb's lettuce, kale and parsnips wait in the bed. Sorting your seed packets now saves a scramble in March.
Harvest in January
7 plants
These timings are for the moderate climate band. In the mild west everything runs about two weeks earlier, in harsh uplands two weeks later. Adjust for your region
All timings are guide values for the given climate, not a guarantee. Weather, aspect and variety all have a say.