This vintage printed cotton seed sack is probably late 1940s or early 1950s - here alfalfa is also called by it's old fashioned name of luzerne.
This is still sewn up as a sack, and measures 14" wide across the hemmed top edge, 28 1/2" long.
We love the bold green and yellow colors on this one! It's nice and clean overall, very little spotting, no particular fading.