Experiments are fun because by definition you never know what’ll happen, and it’s usually not what you expect.
The lettuce I’ve been regenerating from the butt-ends of store-bought romaine heads has, I think, done what it’s going to do.
I don’t by any means consider the experiment a failure. First, it was just really cool. Secondly, there’s enough for a small salad between the two little plants. It looks healthy and green and it didn’t cost anything. By the same token they’re not exactly romaine heads. More like romaine leaves.
I’m not giving up on the idea though. The head-forming problem could have been many things; maybe I should have planted into soil sooner, maybe left them in water longer, maybe the indoor conditions weren’t what they needed. I’m certainly at least going to try putting a couple zombies in the garden come spring.