Hi hector. Most of the onions I've grown will bloom and then create a
seeds inside each individual blossom. About 4
seeds to each one. The Egyptian Walking onion is different in that it makes bulbets that start
growing while they are on the mother plant. I'm still waiting for those to mature. But I'll let you know what happens as it does. That speicies also divides so you can split it if you want to.
Enjoy your onions.