ShowingPerennialsSoil type : NormalFlower colour : BlueSpecial features : Non poisonousAttractive to wildlife : Attractive to wildlifeFlowering month : AugustReady made borders : Ready-made border Piet Oudolf WisleyGround cover : NoPosition : Next to seating areasUsed at Chelsea : 2014 - Tommaso del Buono - Daily Telegraphclear all