(Merle Haggard version above)
purchase [Tom Jones ]
<Green, Green Grass of Home> may well be the first Trees/Grass song that comes to mind for people my age. Possibly followed by <Tie a Yellow Ribbon>. I cannot say that either of them does much for me besides bring back memories - we were severely exposed to both as they sat atop the charts for longer than I would have placed them there.
For me, Green, Green Grass was a Tom Jones hit. I've brought this next point up before, but since we are talking memories... My pop music exposure during Tom Jones' Green Green Grass period was via a short-wave transistor radio connection to pirate radio Radio Luxembourg, more than 1,500 miles away. This meant that the signal came and went such that you mostly caught snippets of the song.
In perusing the Wikipedia article for the song, I was struck by the number of known covers of the song beyond Tom Jones: Johnny Darrell and Porter Wagoner, credited with the first public exposures, and then Jerry Lee Lewis, Joan Baez, Elvis, Nick Cave, Kenny Rogers - and believe it or not, the Grateful Dead.
I also had not fully focused on the lyrics - certainly registering the general melancholy, but ascribing that to an aspect of what I assumed Country music was like. And perhaps not totally wrongly - there are no few songs that lament the state of some po' boy on Death Row, for that's the story the song tells. If you hadn't noticed:
There's a guard, and there's a sad old padre,
Arm in arm, we'll walk at daybreak
Yes, they'll all come to see me in the shade of that old oak tree,
So they lay me 'neath the green, green grass of home