yes evenwith my meagre gardening talents last year I managed to have things every month of the year (and in January February you can be doing seedlings under cover!) You can have your Brussels, leeks, cabbages, winter salads through the winter, spring is a bit slow but with seed growing you use up plenty of time! then you will have all your summer crops, squash, tomatoes, lettuce, radishes, beans and through to the autumn a steady stream of potatoes, fruit, peas, beans, cabbage, onions. The list is endless, and some things you can sow several times to space out the harvest.
Good luck, sounds interesting,