Duchesse is a later flowering yellow with a very high petal count. This makes it one of the fullest double yellow Itohs available. Itohs have a larger range of colours, longer flowering periods and present a bushier more floriferous plant. They carry foliage similar to that of the Tree Peony however die back to ground level just as their herbaceous cousins. Itoh’s are more likely to flower much better in warmer and more temperate climates. They also have a higher tolerance to disease.