Horticulture Report: Physocarpus capitatus (Pacific/Western Ninebark)

Plant Name: Physocarpus capitatus
Common name: Pacific/Western Ninebark
Plant Type: Deciduous Shrub
Plant Height: 5’ – 20’
Spread: 8’
Bloom Time: Late Spring – Late April – July
Flower Color:  White Flowers with Red Tip Stamens/Reddish to Brown Fruit
Exposure:  Sun to Part Shade
Soil Requirements:  Acidic
Water Needs:  Medium – ( best with summer watering)
Attributes: Flaking/Peeling Bark; Attracts Pollinator Insects; Deer Resistant; 3″-5″ Clusters of white flowers.
Uses: Hedge, Woodland Gardens, Native Gardens, Along streams
Native to: British Columbia to California & east to Montana
Oregon Native:  YES
USDA Hardiness Zone:  3 – 8

Report by: Viki Ashford, AGC Member & Master Gardener

Photo Credit: Oregon State University https://landscapeplants.oregonstate.edu/plants/physocarpus-capitatus