Years ago I bought some multiplying onion bulbs from a local business that has long since shut down. When I planted the bulbs, they sprouted into a thick MASS of scallions that were absolutely delightful!!! I have no idea what the name of them, or where to find them. Can you help??
There are so many varieties that will match that description. I wouldn't know where to start. I do know one that comes to mind, and that would be lisbon bunching onions. They are absolutely delicious and grow in an unstoppable clump.