This year I tried something new. I let my kale plant go to seed, and harvested the seeds this summer for the next planting.
For those unfamiliar, kale has a two year life cycle. So if you plant a kale plant, leave it in the ground all winter. It will flower, and eventually those flowers will drop. Once that happens, you will notice pods starting to form.
Once the pods turned brown and papery, and were practically bursting open, I cut the kale plant at the stem, and put everything in an old pillow case. Then start rustling the pillow case to break open the pods. All of the kale seeds will collect at the bottom for planting next year!