Great to see the interest in Idaho. I live up north but get to Boise occasionally and the 2 places to for LFS are Boise Freshwater Aquarium and Fish, Aquariums and Stuff. Both have some terrific tanks and their products are good.
The plant selection at both, as I've previously posted on this forum (2009?), is limited but quality has been good.
I usually purchase plants online and like AquariumPlants.com for quality and service. Avoid azgardens as they are notorious for bad service.
I am a low tech Planted tank enthusiast having gotten started with Diane Walstad's book a few years ago. It has been great fun.
I saw you joined the Treasure Valley Aquarium Club recently. Chat us up we are pretty civilized