trefle.io · CC-BY-SA
Rosaceae
Spiraea rosthornii
Spiraea rosthornii
Flowering Plants · Native Plants · Trees & Shrubs · Spiraea · Flowering Shrub · Deciduous · Chinese Native · White Flowers · Spring Bloom · Part Shade · Ornamental Shrub · Rosaceae
Spiraea rosthornii is a flowering deciduous shrub native to central and southern China, producing clusters of delicate white blossoms in spring. It prefers partial shade with consistent moisture and benefits from light pruning after flowering to maintain a tidy, attractive shape. This uncommon spiraea is an excellent choice for collectors seeking a refined, pollution-tolerant ornamental shrub.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water deeply to saturate the root zone; allow the top 1-2 inches of soil to dry before rewatering · Every 7-10 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 5–7.5
- Temperature
- -40°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 3a-9b
Form & growth
Mature size and habit
- Mature height
- 3 ft – 10 ft
- Spread
- 6.7 ft
- Spacing
- 48 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- China North-Central, China South-Central, China Southeast, Inner Mongolia
- Attracts
- Bees, Butterflies
Sources: trefle, usda
More Spiraea
Related plants from the same genus
Japanese spiraea
Spiraea japonica
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Asian meadowsweet
Spiraea trilobata
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Spiraea douglasii var. douglasii
Spiraea douglasii var. douglasii
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Fortune's Spiraea
Spiraea japonica var. fortunei
Partial Sun · Moderate · Moderate
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No nursery lists Spiraea rosthornii right now.