trefle.io · Taken May 19, 2018 by Fejul Xeto (cc-by-sa)
Rosaceae
Pacific ninebark
Physocarpus capitatus
Also known as Physocarpus capitatus, Spiraea capitata, Spiraea opulifolia var. multiflora, Western ninebark
Flowering Plants · Native Plants · Trees & Shrubs · Native Shrub · Pacific Northwest · Pollinator · White Flowers · Peeling Bark · Rosaceae · Physocarpus · Wildlife Habitat · Deciduous
Pacific ninebark is a hardy, fast-growing native shrub well-suited to moist, partly shaded spots in Pacific Northwest gardens. It requires minimal care once established and tolerates a range of soil conditions including clay. Its clusters of white flowers in spring attract pollinators, while the peeling, multi-layered bark provides year-round visual interest.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water deeply until soil is moist; allow surface to partially dry between waterings once established · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6.5–7
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 20 ft – 40 ft
- Spread
- 20 ft
- Spacing
- 60 in apart
- Growth rate
- Fast
- Root depth
- Medium
- Flowers
- White
- Foliage
- Green · Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- Alaska, British Columbia, California, Idaho, Oregon, Washington
- Attracts
- Bees, Butterflies, Birds
Sources: trefle, usda
More Physocarpus
Related plants from the same genus
Buy this plant
No nurseries currently list it
No nursery lists Pacific ninebark right now.