No. In Jain dharma, scallions and green onions are generally not allowed, because they are part of the onion family and are treated as root vegetables / harmful for ahimsa in diet.

In Jain practice, devotees usually avoid:

• onion
• garlic
• potatoes
• carrots
• other underground vegetables

So the safe Jain answer is: do not eat scallions or green onions.