Injecting light into the shade garden, Lamium maculatum 'White Nancy' (Spotted Dead Nettle) is a semi-evergreen, mat-forming perennial noted for its foliage of heart-shaped, silvery-green leaves adorned with thin dark green margins. Small, hooded, white flowers open in attractive whorls at the end of the stems in late spring and bloom prolifically for about 10 weeks, then sporadically into fall. With a long bloom period and colorful foliage, Spotted Dead Nettle is an excellent groundcover for semi-shaded locations. Evergreen in mild winter climates.