I said: “When they put out the walking part of the onion I will move it to stay within the planter as that walking part could go outside the planter and plant itself in the dirt garden.”
I re-read that post and when I said “I will move it”, I didn’t mean dig it up. I meant just pick up the wandering onion part that fell over on the dirt and place it back in the planter.
Okay, got it! I’m definitely going to try this... thank you.