All potted up and nowhere to go!

I potted up all my shallots and mammoth onions into 5" pots and kelsae into 3" pots today. The grow lamp area is getting pretty cramped as you can see in the picture below. The celery has started to peek through the thin top layer of compost and will need to be potted up in a few weeks. I normally pot these up when the second true leaf comes through.