I've said it before, but do give them room!
I grow Dublin Tim needs about 14" between plants and as you say it grows large.
Now they tell me.
That's the 2nd row hidden under it!
You can get away with 12" apart tim
Ypo have to give irish some space ;D ;D ;D ;D ;D ;D ;D
What really bugs me is that they take off 6-8 leaves like this - crisp & tasty - & call the residue an Iceberg!!
What a waste. One leaf is more than a helping.