You can only get the best quality moongrass from the Moon itself. Just remember to wear a hazmat suit. You don't want to get moondust poisoning.
I can confirm this, its even better then the stuff i conjure up most of the time.
You could end up making a portal gun, though, so that's pretty cool.
I already have poisoning from many different sources in the physical realm and the unphysical!
Update my arm is now gone again.
