Physocarpus capitatus
TAXONOMY
FamilyRosaceae
GenusPhysocarpus
Zone4
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Physocarpus capitatus, commonly known as Pacific ninebark, is a deciduous shrub native to western North America. It is part of the Rosaceae family and typically grows in temperate climates. The plant is known for its attractive peeling bark and clusters of white flowers that bloom in late spring to early summer. It can reach heights of up to 10 feet and is often used in landscaping for its ornamental value.
ALSO KNOWN AS
Pacific Ninebark
Neillia capitata
Neillia opulifolia var. mollis
Opulaster capitatus
Opulaster opulifolius var. capitatus
Opulaster opulifolius var. tomentellus
Physocarpus opulifolius var. tomentellus
Physocarpus tomentosa
Spiraea capitata
Spiraea opulifolia var. mollis
Spiraea opulifolia var. multiflora
Spiraea opulifolia var. tomentella
Spiraea opulifolia var. tomentosa
Spiraea ribifolia
OVERVIEW
VPDCalculate
WaterMoist
SoilLoamy
LightMedium (6 Hours)
Temperature18° C
Humidity60%
Dormancy3 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Pacific ninebark prefers moderate temperatures and can tolerate a range of light conditions, from full sun to partial shade. It thrives in environments with moderate humidity and should be watered regularly to keep the soil partially moist. The plant is relatively low-maintenance but benefits from occasional pruning to maintain its shape and health.Soil
Physocarpus capitatus prefers well-draining loamy soil that retains some moisture but does not become waterlogged. The soil should be rich in organic matter to support healthy growth. While it can tolerate a range of soil pH levels, slightly acidic to neutral soil is ideal.Fertilizer
A balanced fertilizer with an N-P-K ratio of 10-10-10 can be applied in the spring to support new growth. Fertilize once a year, being careful not to over-fertilize, as this can lead to excessive foliage growth at the expense of flowers.Repotting
If grown in a container, repotting should be done every 2-3 years in the spring. Choose a pot that is slightly larger than the current one and ensure it has good drainage. Gently remove the plant from its old pot, loosen the roots, and place it in the new pot with fresh soil.Propagation
Pacific ninebark can be propagated through softwood cuttings taken in late spring or early summer. Cut a 4-6 inch section of new growth, remove the lower leaves, and plant it in a pot with a well-draining soil mix. Keep the soil moist and place the pot in a location with indirect light until roots develop.Pruning
Pruning should be done in late winter or early spring before new growth begins. Remove any dead or damaged branches and thin out crowded areas to improve air circulation. This will help maintain the plant's shape and encourage healthy growth.Toxicity
Physocarpus capitatus is not known to be toxic to pets or humans. However, as with all plants, it is best to prevent pets and children from ingesting any part of the plant.REVOLUTIONIZE YOUR PLANT CARE
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