Mine are still babies. I'm worried about the wind with those skinny single stems out of the ground. Guess I'll just bury them a little deeper when planting out. I've kept the lights within 2-3" of the plants and have plenty of lumens and they're on for 14 hours a day so I'm thinking if I had sowed them a little deeper it would have made a difference. As can be seen in the bottom pic, they're not leggy plants overall.
I'm going to plant a few more and sow them 3/8 to 1/2 inch instead of the recommended 1/4 inch and see what happens. Meanwhile when I plant these out, I'll bury them up to the base of the stocks.
Found one website that says;
Most common garden vegetables don’t mind if you bury their stem part way or all the way up to their first set of true leaves (or first set of lateral branches). You can do this with peppers and members of the brassica family: kale, collard greens, broccoli, Brussels sprouts, or cauliflower.
If the vegetable is one that should normally form a head or bulb right at the soil line, then you’ll want to bury it up to that point – where the stem branches and begins to form the main crop, so that its weight will be supported on the soil surface. Consider a head of lettuce, bok choy, cabbage, or kohlrabi for example.
Since that's the answer I'm looking for, I'm going with it. LOL