Siberian Peashrub is a large, deciduous shrub native to Siberia and Manchuria that brings exceptional cold hardiness and rugged reliability to northern gardens. Growing 15, 20 feet tall and 12, 15 feet wide, this multi-stemmed plant features bright green pinnately compound leaves and cheerful yellow pea-like flowers that bloom in May. It thrives in zones 2, 7, handling poor soils, drought, and strong winds with remarkable ease, making it one of the toughest shrubs you can grow.
Full Sun
Moderate
2-7
240in H x 180in W
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Low
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This Siberian native laughs in the face of harsh conditions that stop other plants cold. Yellow flowers appear reliably each May, and the upright branching habit creates a naturally rounded form that needs minimal fussing. Tolerates brutal winds, drought, and neglectful soils while remaining almost entirely free of insect and disease problems, a rare combination that explains its long history in northern landscapes.
Siberian Peashrub excels as a hedge plant, where its upright branching, moderate size, and ability to withstand exposure make it invaluable for creating windbreaks and screens. It can also be trained into a standard form for ornamental use in mixed borders and foundation plantings.
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Start seeds indoors in a warm environment with temperatures between 50, 70°F. Plant seeds in seed-starting mix and maintain consistent moisture until germination, then transition seedlings to bright light.
Transplant hardened-off seedlings outdoors after the last frost date once plants have developed their first true leaves and nighttime temperatures remain above 50°F.
Minimal pruning is needed due to the naturally rounded, upright branching habit. Remove any dead or crossing branches in late winter or early spring to maintain form. If training as a standard, select a single stem and remove lower branches progressively over the growing season.
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“Caragana arborescens hails from the windswept regions of Siberia and Manchuria, where it evolved to endure extreme cold and adversity. Its introduction to temperate gardens was driven by the simple reality that gardeners in harsh climates needed plants that would actually survive; this shrub answered that call and has remained a cornerstone of cold-climate landscaping ever since.”