When kale goes to seed, can I still eat the leaves?
When Kale Goes to Seed Can I Still Eat the Leaves?
Certified GKH Gardening Expert
If it is beginning to flower, then the plant is bolting and will not be any good for anything else except its greens. So, yes, you may still enjoy the leaves.
Here is more information on bolting: https://www.gardeningknowhow.com/edible/vegetables/vgen/what-is-bolting-what-it-means-when-a-plant-bolts.htm