Posted: 23/03/2012 at 15:00
If you have damp boggy shade, try growing Wasabi as suggested by James Wong. Depending on how you wish to use the garden, you could put decking boardwalks in and plants bog plants, making a feature of it's natural environment. It would make for a different and interesting garden. I too have horsetail and constant digging in the veg patch deters it but the front garden is overrun. I plan to grow a ground cover of Alcemellia Mollis as it has such thick root balls, to hopefully fend it off.