Caption: "Spiraea nipponica 'Snowmound', 2015, Nippon Spiraea, spy-rEE-uh nih-PON-ih-kuh, 3x3 ft Shrub, Z4, white, Bloom Month 5-6, In Bed E3 for 18.2 yearsDense, upright, compact, mounded deciduous shrub which grows 2-4' tall with a similar spread White flowers i
