You might be ok re: nitrogen. The leaves don't look overly large. Do you give your seedlings a dose of epsom salt when you set them in the ground?
I'm talking to anyone who will listen!!Gah! I know you weren't talking to me but I totally forgot and I have a brand new bag I bought for planting.
I try and start by seed indoors but seed was hard to come by this year.Most of my onion sets are bolting. When will I ever learn? I hand picked the largest sets from the bulk bin, and invariably, those are the ones that bolt! But, I have some home grown plants that I am working on getting set into the garden. Hope those don't wither in this heat. 90's again today, then back to 60-70's for the next few days.
I've been ordering my seed in the fall, for the next season's garden. Often, if I don't order super early, I don't get the varieties I want. I also have a huge stash of older seed, but always order "some" just in case I have poor germination. One of these days, I need to take all of my extra seed and toss it all on the ground. Perhaps use it for a massive green manure plot!I jumped on it very early, last Oct. as soon as it became available