Tree onions are one of the easiest onions to grow

Tree onion bulbs and bulbils

Tree onions grow well from the sub-tropics to cold temperate regions and autumn and winter are the best time to plant them. They are now botanically classified as Allium x proliferum as they have been shown through genetic testing to be a cross between the common onion (Allium cepa) and the welsh onion (Allium fistulosum). Read more