Place ‘Rainbow Ascot’ in a sunny spot for the best leaf color. It can also tolerate light shade, but full sun provides the most vibrant colors. The plant likes dry to moderately moist soil, so avoid areas where water can remain.
This Euphorbia is tolerant of drought, so water moderately. Allow the soil to dry out between waterings, especially during wet periods.
As with other Euphorbias, the milky sap can be irritating to the skin and eyes. Wear gloves when pruning and use caution.
General grooming tips can be found here