Leucanthemum x superbum 'Silver Princess' AVERAGE MATURE HEIGHT: 35 cm AVERAGE MATURE SPREAD: 45 cm SUN EXPOSURE: Full sun to partial shade FLOWER COLOUR: Pure white with yellow eyes FLOWERING TIME: Summer FOLIAGE COLOUR: Dark green COLD HARDINESS: Zone 3 ( Should survive up to -39.9° Celsius ) WATER NEEDS: Average.