Fantastic subject, Kate!
Last year in particular I was thinking a lot about how I could build a vertical wall in this fashion, but had no known terms available for which to search. Thanks to you posting about the rockwool, the options available have opened right up. Thank you!
Not sure if this is the article you read, but it does have a lot of information-
http://www.learn2grow.com/insp...
Same concept here, I think-
http://www.florafelt.com/ with lots of visual inspiration.
Good video with how-tos here
https://www.youtube.com/watch?...
Basically, we're talking about a vertical fountain/waterfall that grows plants...very cool!!
