Chasing down heirloom "walking" onions

This is how the walking onion "walks."

Part of the fun of gardening is finding unusual plants or tracking down heirloom varieties.  One variety I remember from my childhood visits with my grandmother is "walking" onions.  Something like a large, spicy green onion, the walking or Egyptian onion reproduces by sending up a scape which bears multiple "bulblets."  The weight of the bulblets causes the scape to lean to the ground where the bulblets take root and start a new clump of onions--hence the name "walking" onions.  Every part of the plant is edible and is a delicious substitution for standard onions!