Tulip Shirley - Single Tulip Single ivory-white flowers with narrow purple margins and spotted pale purple at the base, these coloured markings increase with age. Tulip Shirley makes a very attractive and feminine display. Beautiful planted with contrasting silver foliage. Site: Best in shelterPosition: South or West facing, in full sunSoils: Rich but well-drained, sandy, light soilPlanting Period: September to NovemberFlowering Period: April to MayPlanting: Depth 4 - 6” (10 -15 cm), Spacing 4 - 6” (10 -15 cm)Height: 60 cms