For those of you who have arugula going to seed (or other greens). It is perfectly natural for greens to want to “bolt” (start to produce seed) when it gets hot, but if your greens are already bolting, you might have wanted to pick them & eat them more. They are the types of wonderful plants that produce more, the more you eat. If you neglect them, they will think that their job has passed, and start producing seeds for future generations.
You should select seed from plants that have the best qualities (slow to bolt, deliciousness, resistant to bugs . . . ) Keeping all of that in mind, to collect arugula that is going to seed: