The silky white petals of tree peony rockii have deep burgundy bases forming massive bowl45shaped blooms up to 20cm in diameter33 from late spring until early summer this beautiful and exotic tree peony will shine in your borders making a fantastic cut flower too renowned for being long45lived plants tree peony rockii is hardy and disease resistant ensuring a colourful display for years to come height and spread 15m 40603441culinary information the petals can be added t