Needs a picture of the yellow certificate. Imdill3 02:56, June 6, 2010 (UTC)
they do stack in the bankDarkmagicpi 04:46, August 19, 2011 (UTC)
The herb ranges are given in TT article. Assuming they are uniform we could extend the table. Rich Farmbrough, 13:28 6 October 2012 (UTC).