Regrown leek flowers

in Fruit & veg
Having started my garden on a shoestring earlier this year, I experimented with regrowing vegetables from kitchen scraps. The leeks that I regrew bolted and flowered during the hot weather this summer. This didn't bother me much, as they were an experiment and it has been an interesting process to watch. However, once they were done flowering, they (instead of dropping seed like I thought they would) produced lots of little bulbils directly from the flower heads.
Should I break the flower heads apart and plant the bulbils separately? Or will that damage them and would it be better to just chop off and plant the entire flower head? I thought that leeks needed quite a lot of room and don't like to be crowded, so I am leaning towards the first option, but I would appreciate any advice.
Thanks.

Should I break the flower heads apart and plant the bulbils separately? Or will that damage them and would it be better to just chop off and plant the entire flower head? I thought that leeks needed quite a lot of room and don't like to be crowded, so I am leaning towards the first option, but I would appreciate any advice.
Thanks.

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I should have taken a new photo, really, but it's been bucketing it down all week so I didn't fancy going out there with my camera!
Thanks for your help.
I am not expecting much, if anything, but it will be an interesting experiment and fun to find out.
Sorry for the poor photo quality - my phone doesn't take great pictures.
@Sam 37, thanks, I will have a look.
Looking at the picture of the bulbils in the article that you linked to, I wonder if I have jumped the gun a bit after all and should have left the bulbils on the plant over winter to develop more, but it's done now, so I shall have to cross my fingers and hope and wait to see what happens. If they die, they die, and I shall know better for next time.
@Sam 37 Discovered some interesting things from the video you shared - had no idea that for leeks you didn't want to backfill the planting hole, which might explain why some of the new seeds I sowed this year just gone ended up producing the skinniest leeks I'd ever seen! This year I shall think differently and make sure they have nice loose soil and lots of room to develop fatter stalks.
Thanks to everyone for all their help and advice, I really appreciate it.