Green Neighbors Program

The Clark County Green Neighbors Program is coordinated by Clark County Public Health’s Solid Waste and Environmental Outreach to assist citizens with developing more sustainable lifestyles and building a strong environmental community in Clark County. Solid waste regional planning and programs are a cooperative effort of Battle Ground, Camas, Clark County, La Center, Ridgefield, Vancouver, Washougal, and Yacolt.

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Japanese Spirea

  • Scientific Name: Spirea japonica
  • Garden: Lawn Alternatives Garden
  • Plant Type: Shrub
  • Evergreen/Deciduous: Deciduous
  • Sun/Shade Exposure: Full Sun to Part Shade
  • Moisture Requirements: Wet

Plant Information

Culture: Easily grown in average, medium to wet, well-drained, acidic soils in full sun to part shade. Needs consistent moisture. Soils should not be allowed to dry out. Remove suckers promptly to prevent plants from spreading to form thickets. Noteworthy Characteristics Spiraea douglasii, commonly called western spirea, steeple bush or hardhack, is a deciduous, clump-forming shrub that will spread by suckers to form colonies over time. It typically grows 4-6’ tall. It is native from Alaska to northern California and Montana where it is often found growing in moist soils of marshes, swamps, bogs, damp meadows and along streams. Oval green leaves (to 4” long) are felty white-tomentose beneath. Terminal clusters (to 8” long) of rose-pink flowers appear in summer. Flowers turn brown as they fade. Problems No serious insect or disease problems. Susceptible to fireblight, leaf spot, powdery mildew and die back. Potential insect pests include aphids and scale.

Data Source

Photo Credit

SPJA Full CM, SPJA FLower CM, SPJA Leaf CM (©2022 Cheri Moland)