Yellow Coneflower (Echinacea paradoxa). Hardy, summer-flowering, North American perennial Description: Striking yellow, reflexed ray florets (petals) and a conical, chocolate-brown disk Habit: Single flowers rise on slender, 2-4' tall stems; basal leaves form ... - Yellow Coneflower (Echinacea paradoxa).
Small Yellow Foxglove (Digitalis lutea). Late-spring flowering perennialDescription: Tall, slender flower stems bear many charming, pale yellow, one-inch long flowersHabit: Flower stalks grow 2 to 3 feet tall above a basal mound of evergreen, strap-like, pale g... - Small Yellow Foxglove (Digitalis lutea).