Also known as Tree Onions, Perennial Onions, etc.This is a groovy kind of plant to have in the garden. I received bulblets from a gardening friend in Tassie.
Plant the bulblets about 1-2cm deep in the soil. Water, watch. They grow like 'normal' onions at first. Then they develop bulblets at the end of their stalks.
When this set of bulbets gets heavier, they will bend over, then take root in the soil. Hence the 'walking onion'. This way you will have little onions all over the garden (if you let them) and forever.
If that's not groovy, what is?!