Green onions are onion cultivars picked before they attain maximum maturity and are different from the other onions by their taste and appearance.
Green onions need well-drained loamy soil with mild climatic conditions. They also need a constant water supply, so an effective irrigation scheme should top your priority list.
Depending on the specific onion you want to purchase, avoid brown spots, but instead go for those looking fresh and firm with bright green tops, firm stems, and firm bulbs.
Either with bulbs or no bulbs, green onion varieties have been widely adopted in various kitchens because of their mild and sweet taste, making them a top pick for most chefs.