General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 8b
Plant Height: 2 to 5 feet
Plant Spread: 2 to 5 feet
Leaves: Unusual foliage color
Deciduous
Other: Blue-green, turning a minimally attractive yellow shade in fall.
Flowers: Showy
Flower Color: White
Bloom Size: Under 1"
Flower Time: Spring
Late spring or early summer
Uses: Windbreak or Hedge
Erosion control
Groundcover
Cut Flower
Wildlife Attractant: Butterflies
Resistances: Deer Resistant
Drought tolerant

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Common names
  • Spirea

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Comments:
  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Jul 17, 2021 7:45 AM concerning plant:
    This 'Snowmound' Nippon Spirea was popular in the 1980's & 90's in the Chicago area with most conventional nurseries selling some. I did notice that after some winters, there was significant die back on this shrub in Zone 5a in the region; probably a matter of being tricked by warmer weather in late winter to begin to grow too soon rather than cold hardiness. It would usually get about 5 feet high for a long time, but could eventually get to about 7 feet if never pruned. I have not seen hardly any of this plant in the Philadelphia, PA region after 2002. I did find one big 7 feet high plant at the famous Shady Maple complex in Lancaster County, PA in 2021. I think this cultivar and the similar old-fashioned Vanhoutte Spirea has been replaced by new spirea selections that grow smaller and shorter, as Spiraea x cinerea 'Grefsheim' and Spiraea trilobata 'Swan Lake.'. The Nippon Spirea mother species comes from the Japanese island of Shikoku.
  • Posted by Dennis616 (SW Michigan - Zone 5a) on Jul 4, 2019 6:14 PM concerning plant:
    Snowmound spirea is a classic. When it is small, rabbits love to eat its branches in the winter. Vigorous grower. Awesome show of blooms, but only for about a week or two.

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