dogs eating grass

Penny is a regular grass eater, so we let lots of weedy grass grow in our yard, but in particular we have one long pot of so-called 'cat and dog grass' for her to use.

About a year ago I bought a pot of 'pet grass' and then researched it online, finally coming to the conclusion that I shouldn't have purchased it because it's an allergen for dogs.

By January this year, however,  I concluded that it had been a good purchase, because she's made good use of the grass.

So today I noticed the grass is in bloom.

I've cut off the seedheads. The grass may die, I suppose, now that it has bloomed. But I'll certainly buy another pot of it, if so.

The grass is dactylis glomerata.