I planted a batch of onions (Candy and Walla Walla) before the snow and freeze, and they’re alive, but not too happy.

Today, I planted out my Pontiac onions, and my concern with these is based on something I have read.

When onion seedlings have five or more leaves, and are exposed to a long period of chilly temperatures, they can vernalize and bolt. Although these were not planted out, I was hardening them off, and during that process they were exposed to a lot of temps in the 30s and 40s. As you can see in these pics, some of them do have five leaves. These were my largest transplants, most were thicker than a pencil by a bit.

Do any of you more experienced than myself feel like I have anything to worry about?