Arrowweed

(Pluchea sericea)

Arrowweed (Pluchea sericea)

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Estimated Native Range
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Summary

Pluchea sericea, commonly known as Arrowweed, is an evergreen shrub native to riparian zones, wetlands, and marshy areas in the Southwest USA, California, and Baja California. It typically grows to a height and width of 3-6 feet, often forming dense, impenetrable thickets. This perennial shrub thrives along watercourses and in moist habitats, playing a crucial role in stabilizing streambanks and providing wildlife habitat.

Arrowweed is characterized by its narrow, lance-shaped leaves and its ability to withstand periodic flooding. It produces clusters of small, pink flowers that bloom in the fall, spring, and summer, adding a splash of color to the landscape. The flowers are modestly showy and attract pollinators such as bees and butterflies. In cultivation, Arrowweed is valued for its water tolerance and is often used for erosion control, habitat restoration, and natural landscaping in wet areas. It requires full sun to part shade and thrives in soils with fast drainage, although it can tolerate a range of soil types as long as there is adequate moisture. Arrowweed is relatively low-maintenance, but gardeners should be aware that it can spread aggressively through its rhizomes, potentially becoming invasive in ideal conditions.CC BY-SA 4.0

Plant Description

  • Plant Type: Shrub
  • Height: 3-6 feet
  • Width: 3-6 feet
  • Growth Rate: Moderate
  • Flower Color: Pink
  • Flowering Season: Fall, Spring, Summer
  • Leaf Retention: Evergreen

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Water: High
  • Drainage: Fast

Common Uses

Bird Garden, Butterfly Garden, Erosion Control, Low Maintenance

Natural Habitat

Native to riparian zones, wetlands, and marshy areas in the lower Sonoran Desert and adjacent regions

Other Names

Common Names: Cachanilla, Arrow-Weed

Scientific Names: , Pluchea sericea, Tessaria sericea, Tessaria borealis, Pluchea borealis, Berthelotia sericea, Eremohylema sericea, Polypappus sericeus,

GBIF Accepted Name: Pluchea sericea (Nutt.) Coville