Spiraea japonica var. alpina (syn. S. japonica 'Alpina') Rosaceae
sp-i-REE-a ja-PON-i-ka var. AL-pi-nah
- Deciduous shrub, low growing, 2 tall by 5 ft wide (0.6 x 1.5 m), mounding. Leaves alternate, simple, oval-oblong, 1.3-2.5 cm long, 5-veined, sharp serrations, blue-green. Flowers are pink-rose, borne in 10 cm flat-topped clusters (corymbs).
- Sun. Retains old (brown), seed heads, shear to remove.
- Hardy to USDA Zone 4 Its origin is unclear, but probably of garden origin. The form does not come true from seed (Dirr, 1998).
- Oregon State Univ. campus: parking lot at Washington Ave. on the west side of 11th St.