Because many thousands of years of cultivation and selection and cross-breeding by humans have made it so. Many plants grown by farmers would not survive if we quit taking care of them.
It was grown in Silsden, England and its weight was 10lb 14ozs
Also called a green onion, scallions are basically the sprouts of a number of members in the onion family: onions, leeks and shallots, for example. They grow and are picked before the bulb actually grows under the ground. They have a white bottom and a green top section, all of which are edible. Used extensively in Asian cooking.
About 90% of the garlic grown in the U.S. is grown in California. It is surpassed only by Chinese garlic, which is generally thought to be of lower quality. China grows two-thirds of the world's garlic, mostly in small plots. Its fresh garlic is not as flavorful as California garlic, which is keeping California garlic in the marketplace against the cheap imports.
an onion isn't a root, it is for storage however.