Full Sun
Medium
Should be pruned to shape and control irregular spreading; do this after flowering as buds are set over summer for following year’s blooms.
Try to plant in a location that enjoys full sun and remember to water moderately. Ideally plant in loamy and clay soil and try to keep the ph of your soil between the range of 6.0 and 7.5 as "Paul Thirion" likes to be in weakly acidic soil to weakly alkaline soil.Native to eastern Europe, has been cultivated since 1563; over 400 cultivars.