From multiple garden centers. I read about the plants with the Alabama problem, which made me curious.
3 of the plants are common [jet star, big boy, beefsteak] ... the seven others are heirloom varieties.
The spot where I planted the tomatoes was an old flower bed, in a relatively new place where I am living. So I had no history of what was in the soil. I beefed up the soil with humus and store-bought Miracle-Gro garden soil before planting.
What astonished me, was how fast this spread ... and the timing with the humidity and temperature increase.