Soon, the seed heads will be too heavy for the leaf-stem, and the leaf will fall over or "walk." This is how the walking onions "walk." They are never in the same place next year.
We ourselves are never in the same place next year or even next day or next minute. Walking, walking, walking. From here, going there. Or so it seems.
The only place we are walking toward is our demise.
This year's walking onions will soon bury themselves on the ground.