Spiraea nipponica
Common name: 
Nippon Spirea
Pronunciation: 
sp-i-REE-a nip-PON-i-ka
Family: 
Rosaceae
Genus: 
Type: 
Broadleaf
Native to (or naturalized in) Oregon: 
No
  • Broadleaf deciduous shrub, bushy, to 8 ft (2.5 m) tall.  Leaves alternate, simple, about 2 cm long and 1 cm wide, broadly obovate, oval or elliptic, apex obtuse with a few teeth or entire, base wedge- shaped, upper surface glabrous, dark green, blue-green below; petioles to 3 mm.  Blooms in spring. Flowers white, about 8 mm wide, crowded at the terminal, petals longer than stamens, clusters to 4 cm wide.
  • Hardy to USDA Zone 4      Native to Japan.
  • Two selections:
    • 'Halward's Silver'  -  shrub, about 4 ft (1.2 m) tall, similar width, mounded, compact, dense white flowers
    • 'Snowmound'  -  upright, rigid form, 3-5 ft (0.9-1.5 m) tall, leaves bluish green, abundant white flowers
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