Plant ‘Glacier Blue’ in a sunny spot for best growth and color. It can also tolerate light shade, but full sun provides the most beautiful leaf colors and blooms. Provide well-drained soil. This Euphorbia likes dry to moderately moist conditions and will not tolerate heavy, clayey soils that retain water. Water moderately, especially during the growing season. Allow the soil to dry out between waterings. ‘Glacier Blue’ tolerates drought well. Euphorbia’s milky sap can be irritating to skin and eyes. Wear gloves when pruning and be careful when handling the plant.
General grooming tips can be found here