Being a foodie but knowing nothing about garlic scrapes.... How long do they last? Do you keep them refrigerated or in the open air? How can you tell if they have turned? Does the flavor change over time? I have used some pretty old garlic that while drier, still did the trick.
Is that picture considered a bunch?
They don't last nearly as long as garlic. Garlic, if kept properly will last a close to a year. Scape are much fresher. I'd guess they last 2-3 weeks. Best eaten fresh. You can either refrigerate them or leave them in the open air. Putting them in the fridge may extend their freshness.
You can chop them small and use them in the place of garlic in some dishes, but they are more fibrous. Garlic scape pesto is the way to go.
The photo is not a bunch. It shows a hundred or so scapes. A bunch is 10 of those bulbs and stems.