It keeps growing!
I think this is how wide I'm going to keep it now.
You can see that it'll be plenty big enough to keep my legs warm on the sofa, when I've added lots more rows!
I don't know how long my green is going to last, so I'll keep going with the rows and when I think it's going to run out, I'll use a different colour with the black and grey.
Then it can be stripy as well as hexagonal!