Photo of Spiraea densiflora close-up, flower by National Park Service

Photo by National Park Service

This work has been released into the public domain by its author.

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Spiraea densiflora

Also Known As

  • Spiraea splendens var. splendens
  • Dense-flowered Spirea,
  • Mountain Spirea
  • Rose Meadowsweet
  • Subalpine Spirea

Plant type

perennial, aquatic

size

  • H: 2'-5'
  • W: 2'-3'

planting zones

  • 5a-8b

More Options

Spiraea densiflora plant details

Spiraea densiflora is a broadleaf deciduous perennial aquatic with green foliage. In summer pink flowers emerge. Attracts butterflies making it an excellent addition to pollinator gardens. Grows well with sun and even moisture - regular water. Does well in average and well-drained soil.

CHARACTERISTICS OF Spiraea densiflora

Plant type: perennial aquatic
Plant family: rosaceae
Foliage: deciduous green
Mature size: 2 FT - 3 FT - wide, 2 FT - 5 FT - tall
Flowers: pink blooms in summer
Uses: cutting garden, fall color, meadow garden, native plant

GROWING CONDITIONS for Spiraea densiflora

USDA Zones: 5a - 8b
Sun exposure: sun
Watering frequency: even moisture - regular
Resistant to: deer
Soil needs: average and well-drained

Nursery contributed plant descriptions

Mountain Spiraea is a small deciduous sub-shrub, rarely growing to a meter in height. This shrub native to the Northern Sierras and northern Coastal Range puts on a great show of rosy pink pom poms in late spring and early summer. As winter approaches the leaves will turn to a nice golden yellow and eventually drop. Pruning after leaves fall will ensure a heavy bloom next season. In the wild it is found alongside stream banks and rocky outcrops near a water source and likes moist acidic, well drained soils. California north into Canada and extending east into Central Montana. Attracts butterflies and native bees Native Americans regarded the tea as a tonic & a treatment for loose bowels. The twigs were used to cook or smoke salmon. The native spireas & rose-family shrubs generally were also used as tobacco substitutes or to cut Kinnikinnik in native smoking blends. Found in along streams, lakes, in moist rocky areas, or open subalpine forests. Communitites located in Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest. Between 2,000 to 11,000' .
Flat pink flower clusters and orange-red fall color make this small-medium native shrub from the mountain meadows attractive. Sun/Med-Wet

Gardening facts about Spiraea densiflora plant

How to Grow Spiraea densiflora

  • Sun Exposure

    • sun
  • Water Needs

    • even moisture - regular
  • Soil Needs

    • average
    • well-drained

Features

  • Foliage Color

    • green
  • Flower Color

    • pink
  • Wildlife

    • butterflies
    • deer resistant
  • Flower Season

    • summer
  • Foliage Season

    • deciduous
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