Wild/Perennial/Babington leeks

Looking promising for this year's Babington leek Bulbils. These 3 leeks have self seeded in a planter. They're 5-6' tall. 
How are yours doing?

I’ve harvested a couple of my babington leeks this year. Now they’re just yellowing and will die back soon. No sign of any bulbils. Guessing they’d like a real bed rather than a pot. But they do okay.