Good to eat until it bolts - both of them. Even not too bitter right after bolting but before bloom head develops if you soak it in some ice water before refrigerating. I have both going to and even down here they aren't bolting yet.

Dave

Romaine clearly signals when it's about to bolt - the outer leaves flatten out to the ground. But you're picking your outer leaves.

Keep it in partial sun, in cool spot.

Here is some of my BIBB lettuce coming along.
Leeks are in the background. Most of the patch is not see.
I like head lettuce more than Romain .

Thanks everyone. Looks good seysonn!

Keep eating! Mine doesn't bolt even through 80 degree weeks - takes awhile in the 90s before it considers it. Cilantro on the other hand (and onion) forget it.