Not unless they have viable seeds. Look and see if the seeds are there, in the centres of the flowers. If you can collect them, then it's worth a try to grow some more. Even then, the new flowers may not be the same as the ones on the parent plant.

Good luck!

whats viable meen ?

they r what i call seed like on the inner parts like marigolds

ok i got it tyty

Viable means will grow... which would require them to have been pollenated. If this is a hybrid which I think Gaillardia grandiflora 'Arizona Sun' is then the seeds will likely be sterile or produce a plant that looks like one of the parents.