There are a lot of nursery people that use a very basic mix like that.
Of course the DeGroot plants are potted in pure peat and look how big they arrive! Somebody mentioned on the ICPS listserve that they got a huge bical from one of the Florida growers and it was in pure peat.
Capillary mats work wonders for some. Is it **** Trans who uses them very succesfully on the West Coast for cephs and other plants?