The tomato circled in red was planted the same time as the larger plants. Germination was a day later. They seem to be growing at a much slower pace. I thought this seemed strange, so I replanted and that's them on the bottom. They are growing at the same reduced pace compared to some I started at the same time. The tomato variety is labeled as "Frosty Pink Plum" and I acquired it in a trade about 10 years ago. I can't find any information about this tomato and I lost track of who gave it to me.
I've grown quite a few tomatoes over the years, but never remember seeing this happen.
Any clues?