Works very very well with green onions. I bought more green onions that I could use on sale one time about six years ago, and planted them in a little pot on the windowsill. We clipped the tops off and used them in our cooking for about two years until they started to look kinda raggedy and needed repotting . . . at which point I stuck them in our garden. Long story short, the onions went to seed, and we have had a very hardy green onion patch in one end of our garden for several years now. Actually, they've spread into some areas of our lawn . . . which makes for some odd onion-y smells while mowing, but otherwise looks nice and green!