According to the Canadian company, Lambert, they have the coarsest peat moss which indicates that it hasn't been dead and decomposed for as long a time as other brands of peat moss. See
Lambert Peat Moss
The problem is that the only retail online seller in the US that ships Lambert products is A.M Leonard, 241 Fox Drive, Piqua, OH 45356.
They sent me email spam offering free shipping on orders over $99. I think, "What a great opportunity to buy Lambert products." When I check out my cart for a $120 order, they try to charge me $300 shipping. So, I just leave their website without completing my order. Then they have the nerve to bother me like it isn't obvious why I abandoned my order. It turns out that there is a weight maximum for free ground shipping. I ask them to break up the order to get free ground shipping and they refuse.
There is a wholesale seller, BFG.
They have a $400 minimum order which is acceptable to me, but, they won't deliver to a residential address.
What arrogance! These two companies are basically saying FU to potential customers. Even Chinese companies treat American cusomers better than these two American companies. And then they wonder why they lose customers to the Chinese.