Here in Southern Ontario, we have a relatively short growing season -149 days according to most farmers almanacs. This starts May 9th and ends October 6th though every year will have its own variances. Towards the end of August, we have about 6 weeks left before the first potential frost of the year comes.
If we want to extend our season and continue growing some vegetables under cold frames, hoop houses, row tunnels, or greenhouses, we want to make sure whatever variety we plant has sufficient time to grow to a reasonable size to withstand the cold and keep on producing. This is especially important as the days get shorter and the temperatures get cooler.
If you have space in your garden such as after pulling your garlic, that would be a perfect spot to start some of your fall crops. If you’re like us and like to utilize as much space as possible, we suggest you start your cabbages, kale, broccoli, arugula, and other leafy greens in small containers and transplant them into their final spot at least 3 weeks before the last frost date. This will still give you enough time to get some more harvest out of your tomatoes and peppers while still giving enough time for your new plants to adapt to their environment.