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Royal Jacob’s Ladder (Polemonium carneum), also known as Great Polemonium or Salmon Polemonium, is a showy, moisture-loving perennial native to the Pacific Northwest and northern California. Found in coastal prairies, moist meadows, forest edges, and upland slopes, this species is easily recognized by its loose clusters of soft salmon-pink to cream colored flowers and its attractive pinnate leaves, which resemble a “ladder to heaven.” Its graceful form and pastel blooms make it a standout in woodland gardens and restoration projects in cool, maritime climates.

 

Royal Jacob’s Ladder is especially attractive to bumblebees and solitary native bees. The large, open flowers offer easy access to nectar and pollen, making them a favorite in early to mid-summer bloom cycles. Its natural affinity for partially shaded, moist conditions allows it to fill an important ecological niche in riparian buffers, forest margins, and native meadow communities, where it contributes to biodiversity and habitat structure.

 

Royal Jacob’s Ladder thrives in partial shade and prefers moist, well-drained soils rich in organic matter. It tolerates clay loams and silts and performs best in areas with cool summers and consistent spring moisture. Seeds benefit from cold stratification, and fall sowing is ideal for natural germination. A farm favorite, Royal Jacob’s Ladder offers elegance, resilience, and ecological value in equal measure for gardens or in restoration settings.

Royal Jacob's Ladder - Polemonium carneum

SKU: S-POLCAR
$6.00Price
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  • Scientific Name Polemonium carneum
    Habitat Moist meadows, forest edges, coastal bluffs
    USDA Zone 5 – 9
    Native Region Pacific Northwest, N California
    Phenology Perennial
    Height 12 – 24"
    Light Requirement Partial Shade to Full Sun
    Water Requirement Moderate
    Soil Type Loamy, Silty, or Clay Loam
    Germination Time 21–35 days with cold stratification
    Difficulty ⸙⸙
    Planting Season Fall or Stratified Spring
    Bloom Season Late Spring to Mid-Summer
    Pollinators Bumblebees, Long-tongued Bees, Syrphid Flies
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