Spring onions, on the other hand, look like scallions, but you’ll notice that they have small white onion bulbs at the base. Allium cepa ‘White Lisbon’ is a bunching onion that produces small onions that are mild and crisp. A good onion for pickling. This variety is hardy and reliable and has long white stems with bright green tops. It is quick and easy to grow and can be grown succession ally. They have very shallow roots, so they are perfect for container growing.