jeeks, i was thinking of your lettuce this past weekend.
did any of it bolt to seed in the heat? i think you planted all head lettuce, which is a liitle more resillient.
i had been taking in a full salad spinner's worth of loose leaf lettuces just about every other day for the past few weeks, but more than half of what was left bolted and became too bitter. especially the arrugula plants in the mix. (mesculun mix).a few romaine head in the mix are hanging in there.
i'll still get a few more salads out of it, from the seeds that germinated late.