My mother-in-law asked me to pick up green onions from the store. When I got home, she said I’d bought scallions instead and refused to use them. She was pretty rude about it. I honestly thought they were the same thing—are they actually different, or ju

You didn’t mess up—this is mostly a terminology issue, not a real cooking mistake.

Are green onions and scallions different?

Short answer: they are basically the same thing.

• Green onions
• Scallions
• Spring onions (sometimes used differently depending on country)

All of these usually refer to young onions harvested before the bulb fully develops.

In most supermarkets (especially in the US and many other countries), “green onions” and “scallions” are interchangeable labels for the same produce.

Why the confusion happens

The only real variation is in how people use the terms, not the plant itself:

• In the US: scallion = green onion
• In the UK/Commonwealth: “spring onion” is more common
• In some regions: “spring onions” may be slightly more mature with a small bulb

But in everyday cooking, they are treated the same:

• Mild onion flavor
• Long green stalks
• White base used for cooking
• Green tops used as garnish

So why did she reject them?

That’s not about the ingredient—it’s likely:

• Personal habit or regional naming preference
• Preference for thicker/thinner stalks
• Or just misunderstanding, not culinary accuracy

Bottom line