ShowingSoil type : NormalFacing : NorthSpecial features : FloweringFlowering month : JulySowing month inside or protected : AprilFlower colour : PurpleAttractive to wildlife : Attractive to beesUsed at Chelsea : 2011 - Luciano Guibbilei - Laurent-PerrierKitchen garden planting guidelines : Suitable for large container gardeningclear all