Q.What Type Of Epsom Salt Is Used For A Green Lawn And Hedges
Is there a certain type or name brand of Epsom Salt for lawn

Certified GKH Gardening Expert
We don't recommend specific brands or retailers, but here is an article on using Epsom salt on lawns. I doubt that one brand is better over another. It's ordinary household Epsom salt. I've included another article from university extension about its usage. It's best to have your soil tested and see if it is deficient before using Epsom salt or any other chemical.
https://www.gardeningknowhow.com/lawn-care/lgen/using-epsom-salt-on-grass.htm
https://s3.wp.wsu.edu/uploads/sites/403/2015/03/epsom-salts.pdf