Euphorbia 'Ascot Rainbow' does provide shelter for soil life but is not of high wildlife value in the garden.
There is a unique variegated flower and rosette foliage on this dwarf bushy evergreen sub shrub/perennial plant. In cooler weather the foliage will tinge pink. Exudes a milky sap then bruised or cut, this can be a skin irritant, always wear gloves when handling Euphorbia.