My onions have gone to flowers. What can I do?
Certified GKH Gardening Expert
Members of the onion family are prone to bolting. Here is an article that you may find helpful: https://www.gardeningknowhow.com/edible/vegetables/vgen/what-is-bolting-what-it-means-when-a-plant-bolts.htm
Most people do cut the flower off because it will sap energy away from making the onion bulb. But, if you would like to have seeds to collect and grow, you can leave it on.
If you want to collect the seeds, you do need to let the seed pod dry before collecting the seeds.