I don't have any Rosemary seeds. I have some seeds for stuff like leaf celery, spinach, chives, Roselle etc. Those are the ones that I need to dig out. I can't even remember what all I have. I need to finish the listing of my 2013 seed stash to see which ones I will try next.
I have one Rosemary bush that is over six feet across. We use as much as needed, and give away limbs of it to neighbors. Just take a limb, stick it in dirt and it will grow.
My big plant came from one single stalk that was less than a foot long. I’ve given neighbors potted plants that are growing like weeds.