Plant Check Up

My plants are doing variably well. One of my zucchini plants is doing fantastic. It has grown so much since I put it in the ground and it is growing extremely fast it has quadrupled in size over the past week. My spinach is also doing very well. It has begun to show some little flowers. My tomatoes and lettuce on the other hand are not doing as well. They are smaller and seem to not be thriving. I am not sure why though. I am hoping to ask Mr. Creagan or the Shermans what they think the problem may be. I took some pictures but my phone is having some problems sending them so I will upload them later hopefully.