Sowing for Autumn/Winter Harvests

This is the guidance I use for when to sow things if I want to harvest during autumn and winter. It's a modified version of the chart from this page - https://www.johnnyseeds.com/growers-libr...uling.html

It's already too late for some crops like carrots, but there's plenty you can sow for harvesting over winter if you grow under cover. I don't grow everything on this chart e.g. minutina, cress or rocket. 

The tiers separate crops by how reliable they are to grow during that part of the year, though I disagree with lettuce or chard being unreliable (yes, a lot of lettuce usually conks out from root rot some time in January/February, but chard is a trooper and carries on until April). 

My ranking (from best to worst) would be: chard, spinach, parsley, kale, lettuce, claytonia, coriander, mizuna, mibuna, komatsuna, pak choi, tatsoi. Even the 'worst' crops still provide you with a decent harvest over winter, they just go to seed quickly if we have a warm February. 

I've not yet managed to get spring onions to a reasonable size to harvest during winter, but varieties like Winter White Lisbon will stay outside happily through utterly rubbish weather and then provide you with excellent harvests in spring. 

Parsley isn't on this chart, but I grow it and coriander in the greenhouse over winter very successfully. 

Outdoors I only grow lamb's lettuce, spring cabbages, overwintering Japanese-type onions and spring onions.