Hoary Tansyaster

(Dieteria canescens)

Hoary Tansyaster (Dieteria canescens)

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Estimated Native Range
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Summary

Dieteria canescens, commonly known as Hoary Tansyaster, is a perennial herb native to arid and semi-arid regions, including prairies, dry open woods, and scrublands in the Western United States and Canada. It typically grows to a height of 1-2 feet and can spread to a width of 4-6 feet. The plant forms a bushy clump with narrow, gray-green leaves and stems that are covered in fine hairs, giving it a hoary appearance. From late summer to fall, it produces numerous daisy-like flowers with yellow centers and purple to lavender rays, which are quite showy and attract a variety of pollinators.

Hoary Tansyaster is valued for its drought tolerance and its ability to thrive in poor soils, making it an excellent choice for xeriscaping and naturalized areas. It is also used in wildflower gardens, as a border plant, and for restoration projects. This plant is adapted to full sun or part shade and prefers well-drained soils. While it is generally low-maintenance, it can benefit from occasional watering during prolonged dry spells. There are no major disease or pest issues, but it can occasionally suffer from root rot if overwatered.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 1-2 feet
  • Width: 4-6 feet
  • Growth Rate: Moderate
  • Flower Color: Purple
  • Flowering Season: Summer, Fall
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Water: Low
  • Drainage: Medium, Fast

Common Uses

Bee Garden, Bird Garden, Butterfly Garden, Hummingbird Garden, Low Maintenance, Rock Garden, Showy Flowers

Natural Habitat

Arid and semi-arid regions, including prairies, dry open woods, and scrublands

Other Names

Common Names: Hoary-Aster, Canescent Aster, Hoary Aster, Hoary Tansy-Aster, Aster Chenu

Scientific Names: , Machaeranthera canescens, Dieteria canescens, Aster canescens, Machaeranthera ramosa, Aster canescens var. viscosus, Machaeranthera glabella, Machaeranthera linearis, Machaeranthera spinulosa, Machaeranthera canescens var. monticola

GBIF Accepted Name: Dieteria canescens (Pursh) Nutt.