I remember doing that as a very young teenager or pre-teenager. The whole family took part. I don't remember where Dad got the sprigs.
On one part of the pastures tho, my father had gotten some green cut coastal (may have been Alicia or African Star..he tried ever grass that came down the pike back then) that he put in the edge of a pond until it started showing roots and what he called suckers. We had disked the ground up pretty good, it was loose and rain was forecast beginning one night and into the next day which was pretty often back then in East Texas. , so we had to get it done in one day. We loaded all the stinkin wet mess up on a trailer, and with butcher knives, and hatchets, the older folks cut it into sections trying to leave it long enough to include the new growth on each handfull us younger (brother and I) folks had separated out and handed to them. We just tossed it out as someone drove along slow. Dad then drove back over it with a disc, what he called 'cutting it in and we had to walk the field, covering some of it with our feet, kicking dirt over it where needed. Certainly Po folks spriggin but it worked pretty good and it's one of my good memories from back in the day. I'll have to look, but may have a picture of us doing it since my oldest sister and her new husband were there and she was good about taking pictures with her Brownie camera.