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
|
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 I think this cultivar and the similar old-fashioned Vanhoutte Spirea has been replaced by new spirea selections that grow smaller and shorter, as Spiraea x cinerea 'Grefsheim' and Spiraea trilobata 'Swan Lake.'.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 5b) 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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