i have red a lot of post saying that you don't enough seeds from the grass well i have a way to get a seed from every grass,
when harvesting grass if you do not get a seed just replant it sometimes it takes 3 or 4 goes but you do get a seed, and every so often you need to replant a grass a lot more times, but its not that much trouble if you want the seeds, so stop complaing about it and work it out like i did.