Seidl (1989)
Hidden Treasure is a yellow Itoh hybrid with a dark heart and semi double flowers. With the softly scented flowers highly recommended for gardens and parks. Hidden Treasure blooms easily and rich, whose flowers stick out above the plant with dark leaves. In the midlate season a beautiful plant for both solitaire planting as well for large groups planting. Hidden Treasure retains a great decorative value even after flowering. This because the leaves gives in the fall beautiful Indian summer colors until the frost starts.