Palest blue petals that are intricately etched with deep blue veins brave the winter cold in february and march a flash of bright orange on the fall of each petal draws the eye to this mesmerising dwarf iris given its tiny proportions this superb reticulata iris is surprisingly vigorous forming large swathes of winter flowers as it multiplies over the years rhs agm variety iris katharine hodgkin makes a dazzling display in rockeries borders and containers or planted beneath trees and