Potato
This is Puffergas' first test of growing potatoes in switchgrass compost. The potatoes were grown in containers and charcoal was added to the compost.
See link below:
Potato 2007 by Puffergas

Establishment and Management of Prairie Grasses
Royal Horticultural Society Research, UK, 2007

Establishment of North American prairie grasses by field sowing was investigated at the Royal Horticultural Society Garden at Wisley. This experiment is part of a larger programme of work to investigate the use of North American prairie wildflowers and grasses as a style of planting in gardens and parks in Britain, which is a modern, informal and low maintenance. It is particularly appropriate for amenity planting.