Pastel Lilas a highly floriferous single and its own unique shade of lilac, another exciting addition to the 2020 list. 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.