Flowers:
Yellow (Individual plants only flower once, and then die; striking pale yellow flowers (3-4" long) appear on a 15-30' high stalk)
Foliage:
Blue (Gray-blue evergreen leaves)
Fruit:
Brown (Flat, disk-like seeds inside round capsules; not ornamentally important)
Soil:
Requires well-drained soils
Diagnostic Characteristics:
Leaves occur in a basal rosette, to 5' long and 10" wide. Leaves are gray/blue, curved or reflexed at the tip, with toothed margins. Flowers emerge on a horizontal branching structure up to 6 ft across that is attached to a 15-30 ft tall asparagus like stalk.
