After returning from the Dwell on Design show, I had a Deep Six seed-starter full of root-bound tomatoes (one of them is the “Older Plant” above). I left them in their pot for display at the show, otherwise, I would have transplanted them out several weeks earlier. I also had a Deep Six full of tomatoes that were just the right age for transplant (that’s the “Younger Plant” above). I transplanted one of each to 4″ pots to see how much difference being root bound in a seed-starter makes to the adult plant. I’ll post updates as the plants grow.