Interesting gardening facts
The wonderful walking onion......Many persons regard the remarkable and slightly peculiar "walking onion" as either a junk plant, a curiosity for children or simply a bother in the garden. Few persons consider it a valuable addition to the garden or to the menu.
Perhaps it should be...for good reason. First, they are hardy and do well here. The little top set onions are about halfway between chives and garlic in flavor. The plants are totally edible. The bulbils are good pickled and the hollow green stalks can be chopped for salads and soups, split and filled with cream cheese. The onions propagate themselves by making clusters of bulbils, small bulb or bulb-shaped growth arising from the leaf axil or in the place of flowers (see above) at the top of their stems. When they become top heavy, the bulb cluster bends the stem to the ground, the bulbils root and the onion-as-Slinky keeps growing.
Why do butterflies have two sets of wings? It's not to fly higher or faster, according to Smithsonian magazine (January 2009). The hindwings appear to be crucial to a butterfly's ability to be agile in the air and to turn quickly - presumably to avoid predators like hungry birds.