I just found this. I believe this is the place my sister has been shopping at for years.
Here is another link: seeds, herbs, spices, essential oils, teas and such.
Hard to get seeds. Haven't purchased from this site yet.
http://www.mountainroseherbs.com/
WHEN you come to the end of your rope TIE A KNOT & HANG ON.
Thank you for this nut tree site! I am taking a herbal course through 7Song... he mentions this other site (also Rosalee does)
Wish I had of noticed this post earlier!
I did find a nut tree supplier in Alberta. Not as big a variety, but good anyways. Unlike your supplier, this guy still has stock for sale now http://www.mrvs.net/

