Well they are old but since I seeded them close together in a small container and never got around to planting them out

they looked a bit strange when I went to throw them out onto the compost heap.

They have formed small little round bulbs that look a bit like bluebell bulbs -between the size of a pea and a grape.

It makes me think that if I plant them (like garlic say) that they are going to grow again (like a set)

So can this be done and if so would it need to be done in the Autumn or will I get something out of them by planting them now?