Light Needs
Mature Height
Mature Spread
Growing Zones
Spirea Nipponica Snowmound, otherwise known as “Snowmound Spirea,'' is a beautiful shrub with gorgeous drooping flowers that’ll add a romantic feel to your outdoor space! Contrasted with the dark, green foliage, the multi-bloom flowers bloom from mid to late May. Snowmound Spirea can grow from 4 to 5 feet in height and 4 to 5 feet in width allowing it to be a perfect flowering shrub for hedges, walkways, and accent features in a romantic garden atmosphere.
Snowmound Spirea is a dense, compact, and resistant perennial. Most comfortable in USDA hardiness zones 3 through 9, the leaves of this shrub fall in winter time, leaving behind its woody stems that bud again in spring. Snowmound Spirea is native to the island of Shikoku, Japan and is often used in a romantic, zen garden setting. The flowers of Snowmound Spirea are mildly fragrant. Though Snowmound Spirea is not seriously affected by any specific plant diseases or insects, the place is susceptible to common insects or disease such as aphids, powdery mildew, and leaf spot.
Snowmound Spirea Care
When planting and caring for Snowmound Spirea, it is important to note that the shrub prefers to grow under light shade if planted in extreme summer weather. The shrub can tolerate full sun to partial shade. Snowmound Spirea will thrive in well-drained and fertile outdoor soil but can tolerate most soil. IF fertilizing, we recommend a well-balanced, organic fertilizer (10-10-10) with care not to feed too much nitrogen.
For Snowmound Spirea, you should prune at the end of the winter or very early spring to encourage new flowering as Spirea prefers to flower on new wood. When in bloom, prune away old, flowered clusters. Also, we recommend pruning older, dead woody stems at soil level.
Snowmound Spirea Spacing
As Snowmound Spirea grows fairly tall and wide, you should be thoughtful about placing the plant in an area with enough room to grow to about 6 feet in width and 6 feet in height. Snowmound Spirea can mature to a large size, so placing the plant with about 6 feet of space in diameter will encourage the shrub to mature fully.
Snowmound Spirea Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 4 to 8 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Part Sun to Full Sun (5+ Hours Direct Sun)
- Mature Height
- 4-5 Feet
- Mature Spread
- 4-5 Feet
- Growth Habit
- , Spreading
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , White
- Flower Description
- White
- Bloom Time
- Late Spring
- Blooms On
-
Old Wood
?
"Blooms on" tells you which stems produce flowers, which decides when it's safe to prune.
- New Wood: Flowers form on stems that grow this season. Prune in late winter or early spring without losing blooms.
- Old Wood: Flower buds form on last year's stems. Prune right after flowering. Pruning in fall or early spring removes next year's blooms.
- Both New and Old Wood: Blooms on last year's stems and again on new growth, so it flowers even after a hard winter or a mistimed pruning. Prune lightly after the first flush of blooms.
- When to Prune
- Right after flowering
- Foliage Color
- , Green
- Foliage Description
- Dark Green
- Foliage Type
- , Deciduous
- Seasonal Interest
- , Spring Flowering
Garden Benefits
Plant Overview
- Common Name
- Snowmound Spirea
- Botanical Name
- SPIRAEA NIPPONICA 'SNOWMOUND'
Simple Plant Spacing Calculator
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
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Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
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