Got nothing to lose. If it grows, great. If it dies, it dies. Weed is a weed, afterall. As long as they get food and light, they're pretty damned hardy.
You're down to 6mg? You've damn near quit already. I went from four packs of Kents a day down to constantly vaping 24mg (custom blend). When they hacked half of my left lung out and a quarter of my right, cold turkey seemed to be the way to go. I've been munching 8mg nicotine pouches for two...