Jumbo Ostrich Fern
Matteuccia struthiopteris 'The King'
1 gallon pot
 
Bold, extra large fronds reaching 6ft in height. Edible fiddleheads in spring. Cool, moist shade is a must. 
 
Fern
Part to full shade
Zone 2
Grows 4-6 ft high x 3-4 ft. wide 
Spacing 3-6 ft.