Physocarpus amurensis (Physocarpus amurensis)
Also known as: Amur ninebark, Eastern ninebark
Physocarpus amurensis is a hardy shrub indigenous to the Amur River area. It features gracefully arching branches with distinctive flaking, coppery-brown bark and clusters of small white flowers that bloom in the spring. The shrub has three-lobed leaves that turn vibrant colors in the fall. It adapts well to various soils and environmental conditions, flourishing in both sunny and partially shaded locations.
In This Article
Attributes of Physocarpus amurensis
Lifespan
Perennial
Plant Type
Shrub
Plant Height
1.5 to 4 meters
Spread
1.5 to 2.5 meters
Leaf Color
Dark green
Flower Size
Approximately 5-7 mm
Flower Color
White
Images of Physocarpus amurensis
Quickly Identify Physocarpus amurensis
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Physocarpus amurensis can be identified by its peeling bark, which reveals layers of different colors, and its three-lobed leaves. The plant produces clusters of small white flowers followed by red to purple fruit.
Scientific Classification of Physocarpus amurensis
Phylum
Vascular plants
Class
Dicotyledons
Order
Roses, elms, figs, and allies
Family
Rose
Genus
Ninebarks
Species
Physocarpus amurensis
Planting and Growing of Physocarpus amurensis
Care Difficulty
Easy
Watering Schedule
Every 4 days
Sunlight Requirements
Partial sun
Sunshine Duration
6-12 hours
Ideal Temperature
60-75℉
Soil Type
Potting Mix, Peat Mix
Soil pH
6.5-7.5
Fertilizer Type
Balanced
Pruning Season
Spring, Summer
Pruning Area
Branches, Leaves
Pruning Frequency
2 times a year
Repotting Season
Spring
Pot Type
Plastic, Ceramic
How to Water Physocarpus amurensis?
Water Physocarpus amurensis thoroughly until the soil feels evenly moist to the touch. The suggested amount is around 500 milliliters per watering session, ensuring the water reaches the root level but does not cause water logging.
What are the symptoms of an underwatered Physocarpus amurensis?
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What should I do if my Physocarpus amurensis is not getting enough water?
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What are the symptoms of an overwatered Physocarpus amurensis?
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How to save an overwatered Physocarpus amurensis?
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What Are the Sunlight Requirements for Physocarpus amurensis?
Physocarpus amurensis prefers partial sun, blooming best with 4 to 6 hours of daily light. This balance aids growth and flowering without risking overexposure.
What is the ideal lighting for Physocarpus amurensis?
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How can I ensure Physocarpus amurensis gets the ideal light?
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What are the benefits of ideal lighting for Physocarpus amurensis?
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What Is the Ideal Temperature Range for Physocarpus amurensis?
Physocarpus amurensis thrives best within an ideal temperature range of 60 to 75 degrees Fahrenheit. This range ensures optimal metabolic processes, promoting healthy growth and vibrant foliage. Maintaining this temperature range helps prevent stress and promotes a balanced growth environment.
What Soil is Best for Physocarpus amurensis?
Physocarpus amurensis thrives best in soil that offers good drainage. Ensuring the soil does not retain excess moisture prevents root rot and encourages strong root growth, leading to a healthier plant. This plant benefits from soil rich in organic matter. Nutrient-rich soil supports lush foliage and vibrant flowering, making it a favorite in landscapes. While it prefers well-draining soil, maintaining moderate moisture levels is key to keeping this plant hydrated and flourishing without the risk of wilting.
How to Fertilize Physocarpus amurensis?
The optimal amount of fertilizer for Physocarpus amurensis should be moderate, focusing on delivering balanced nutrients without overwhelming the plant. For liquid fertilizers, use a solution diluted to half strength; for slow-release fertilizers, apply according to the manufacturer's instructions but avoid exceeding the recommended dose.
How to Prune Physocarpus amurensis?
Begin by identifying and removing any non-essential growth. This includes overly thick areas of the plant that block sunlight. Opening up the plant allows light to reach the center, promoting healthier growth. Shape the plant by trimming back overgrown branches, maintaining a balanced form. Effective pruning should encourage a natural shape while also enhancing the plant's aesthetic appeal and allowing for optimal growth conditions.
More About Pruning Techniques→
How to Propagate Physocarpus amurensis plant?
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Gather seeds from mature Physocarpus amurensis plants during early autumn. Ensure that the seeds are fully mature and dry before storage or sowing.
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Select healthy stems and cut sections about 4-6 inches long. Remove the lower leaves, and dip the cut ends in rooting hormone before planting.
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In spring, divide mature plants by carefully separating the root ball into smaller sections with a knife or spade. This helps rejuvenate older plants while creating new ones.
How to Repot Physocarpus amurensis plant?
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Physocarpus amurensis typically signals its need for repotting when its growth slows or roots visibly protrude from the drainage holes. Spring and autumn are ideal seasons for repotting, as they provide moderate temperatures and reduced stress. Keeping an eye on these indicators helps ensure the plant remains healthy and continues to thrive in its container.
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Choose a pot that is one size larger than the current one and has ample drainage holes. This ensures that water doesn’t accumulate, which could lead to root rot. A pot that breathes well, such as one made from terracotta, can further enhance the health of your plant by allowing moisture and air to circulate properly.
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Opt for a loamy, well-draining soil mix that mimics the plant's natural conditions. This type of soil provides adequate aeration, retains the right amount of moisture, and supports the root structure, ultimately contributing to the vigorous growth of Physocarpus amurensis.
