Wow! That is a really pretty lettuce. Reminds me of Black Seeded Simpson.
Each ‘head’ should be in a 6-8” pot. It doesn’t have to be really deep - a recycled nursery pot would be just fine. Lettuce has a shallow root system, so depth usually isn’t a problem. Make sure there’s good drainage.
Lettuces in pots are ‘heavier feeders’ so get in the habit of using a diluted 10-10-10 fertilizer (basic Miracle Grow, or go organic) with every watering.
I have some pictures to post later of my experiment with re-growing store-bought Romaine lettuce ‘stumps.’ It worked pretty well!
‘Tis good to hear you are feeling better! I’m just very achy from all this ditch clearing - more stuff blew in* / into the ditch last night. :-(
*We got a scare last night: A tornadic storm had just passed slightly to our south, and I was looking out our back door at the heavy rain and lightning show, that direction, when suddenly a hard gust bent the buckeye tree out back way over toward the east - I almost expected it to snap or uproot - and then a few seconds later the wind reversed and the tree bent over maybe even a bit more, toward the west! Yikes! Crap was blowing all over the place too. But, a few more seconds, and then the wind slowed, reversed again, and was back from the west, but not as strong, then it gradually diminished to maybe 20 mph and we got, sort of oddly, just a few pieces of quarter size hail. Then that stopped and it just rained some more. Whew!
Thanks for the info. on the lettuce - if I run out of pots I could probably even make do for this experiment with used / cut down gallon milk jugs. :-)
The feeding makes sense, and I got lucky with picking up 2 extra boxes of Wally World knockoff “Miracle Grow” on clearance last fall - wifey thought I was nuts to buy 3 total, but now it looks like it was a good idea.
Regrowing the Romaine lettuce stumps seems like a good idea — Last year I had a head lettuce stump pop up out of the compost pile! I have two Baby Bok Choi stumps right now, to try that with, but in pots.
Oh, returning to the Muir lettuce - are those multiple stems in each section of the “4-pack” most likely individual plants from the vendor throwing 3-4 seeds into each section? (I’m showing my ignorance again, but every pic I found online of juvenile Muir lettuce plants showed single stems.)