Classic Orange Daylily (Hemerocalis Fulva) Pack of 4

 
Perennial Vegetable - Flowers, Tubers
Herbaceous Layer - 30" Height. 18" Wide 
US Zones 3-10
Full Sun,  Light Woodland Shade
Pack of 4+ Plants
 
Plant 6" - 18"  apart to cover 6-14 square feet
Propagate by root division every 2 years
 
Edible parts:  Flowers, use as a better-tasting, nutritious alternative to lettuce.  Dried, as a thickener for soups and stews, the flowers are high in protein.  Good batter dipped and fried, as well.
Tubers, easily harvested when transplanting or dividing plants:  as much as 300 grams in one square foot of space, 166 calories per 100 grams, 570mg Potassium, and a taste nearly identical to potatoes.  Wash tubers, and boil for 10 minutes or so:  Use like potato, good in soups and stews, stir fry, cooked like hash browns, ect.  For best flavor, choose the lightest colored (youngest) tubers.