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River Locust

Light Requirements
•    Full sun (6 or more hours of direct sunlight a day) to partial shade (2 to 6 hours of direct sunlight part of the day).

Soil Preference
•    Highly versatile, tolerating a large range of soil types including poor, sandy, and clay textures.
•    Adapts to moist, dry, or wet soils, managing drainage conditions that range from occasionally dry to occasionally wet.
•    Thrives in an acidic (< 6.0) to neutral (6.0–8.0) soil pH environment.

Wildlife Benefit
•    Larval Host: Critical host plant for multiple species, including the California and southern dogfaces, Silver-spotted Skipper (Epargyreus clarus), Gray Hairstreak, and Hoary Edge butterflies.
•    Pollinator Forage: The narrow, fragrant purple and gold flower racemes attract butterflies, nectar-bees, and various other pollinating insects.
•    Mammal Forage: The fine-textured, pinnately compound foliage is browsed by small mammals.

Human Uses
•    Landscape & Screening: Reaches a mature size of 4 to 15 feet tall and spreads up to 15 feet wide. It is used as a functional barrier, hedge, or privacy screen, and works well massed in woodland gardens, bog gardens, rain gardens, and stormwater systems.
•    Erosion & Restoration: Because of its rapid growth rate and horizontal, suckering habit, it is heavily used for erosion control on roadsides, steep slopes, banks, and riparian zones.
•    Crafts: Utilized historically and modernly as a native dye plant asset.

Resistance to Challenges
•    Mammals: Highly deer resistant.
•    Harsh Environments: Showcases strong natural resistance to poor soil, dry soil, wet soil, frost, and overall poor site conditions.


Note on Management: It can become weedy because it spreads easily via seeds and root suckers to form dense thickets. 

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