Tomatoes are turning yellow from the bottom up
I can't figure it out. Plenty of sun and water, planted in Miracle grow. It started with the first 2 plants turning yellow on the bottom, then the yellow spread towards the top. Now a third plant has symptoms. All after growing vigorously for 10 weeks. I have 2 others as seen in the 4th photo that are still doing OK.
Contrary to popular belief, tomato growing is not easy. This is the second year and I'm not doing any better.