Gypsophila - cut back?

Mine have been flowering away for the last 2 months, one in a pot only has a few flowers on it but the one in a bed has still plenty of flowers on it.
I haven't deadheaded any as I was waiting for seeds but just noticed the seed pod is seperate from the flowers so i,m going to deadhead the one in the pot.

If it's the tall paniculata type, don't cut back too hard, no more than say half. These types are best left a bit straggly through the winter. Only cut back to good new shoots in spring or they often fail.

The shorter mounded types can have their flower stems cut back to the foliage.