Jag......don't know. I'm sure there are some out there.
In the meantime, this message board seems to have provided a pretty good substitute for you for "watching grass grow"....that is, given your volume of posts here.
TR
P.S Maybe I misinterpreted you and you meant switchgrass, the kind that is being developed for rural energy production and slated to be used with new KDS separation technology via U of Tennessee and Oak Ridge National Labs research.