elephant garlic getting seed heads - what to do?

Autumn planted garlic and small shallots which have looked fantastic all winter are suddenly growing flower heads. 
The shallots are in modules of 2 or 3 and have begun to die back but now have seed heads - presumably they are ready to lift, but the garlic - mainly elephant garlic, has very green leaves but many are producing seed heads and thick stalks, do I just cut off the seed head and wait for them to die back before lifting , or do I need to lift them now?

Cut out the scape, but it is not time to lift elephant garlic yet, so given them a feed and plenty of water to build up those huge cloves.

Cut out the scape, but it is not time to lift elephant garlic yet, so given them a feed and plenty of water to build up those huge cloves.

Hey now, that's very interesting, Sunny!

Can I do that with ordinary garlic as well? The scapes are getting taken off each day, and the corms are a pretty good size, so should I still feed 'em?

It wouldn't be a problem!

They are 'scapes' as previously mentioned in this thread, and are perfectly normal for hardneck garlic (strictly speaking they aren't seed heads, and it doesn't indicate a cultural problem as it would with onions or shallots.)

The bulbs should be starting to swell now, so a liquid feed wouldn't go amiss - comfrey or nettle may be a bit high in nitrogen at this stage of their growth, but less so than many bought liquid feeds, so should be fine as long as you don't overdo it.