Ornamental alliums, members of the onion family (Amaryllidaceae), produce flowers that are uniquely ball shaped and stand atop long, graceful stems. Young children marvel about the lollipop or stargazing blooms. Depending on species, alliums come in many colors (white, yellow, pink, purple, blue), shapes (round, oval, cascading), and sizes (5 inches to 5 feet tall). […]