The silky white petals of Tree Peony rockii have deep burgundy bases forming massive bowl&45;shaped blooms up to 20cm in diameter&33; From late spring until early summer this beautiful & exotic tree peony will shine in your borders, making a fantastic cut flower too. Renowned for being long&45;lived plants, Tree Peony rockii is hardy & disease resistant ensuring a colourful display for years to come. Height & spread: 1.5m &40;60&34;&41;.