"Gee, Satan, NEEEEOOOOOOOOOOOOOEEOEOEOEOOOOEE"
"Shut the *** up, Nrinroot."

If you try it without the added glow effect the plant itself is very bright and does a good job of pretending to glow. It still behaves like a 'muted effect' because of how bright it is.

You could simply reduce it to oblivion-like levels instead. At least for the glow, it would keep it within Lore.

i did think it was much more extreme in this game so i do agree with you on that part. it glows unrealistically bright and and makes too loud a sound. it was much more realistic in Elder Scrolls IV: Oblivion

It's possible that maybe the level of glow and noise just became too much in Skyrim. I swear I never realized it did this before in the previous games.

personally the i prefer the noise cuz it helps me find it, though it's not as helpful as it was in Oblivion cuz in Oblivion Nirnroot was usefull for an awesome potion, now it's just any other ingredient. and the whole point of nirnrood is that it's special because it glows. i understand how you've gotten annoyed by this, but the noise and glow are why nirnroot is so special. without them, it's just like any other weed

Think I saw a similar mod that went "shut up nirnroot"