Limestone Fameflower

(Phemeranthus calcaricus)

Limestone Fameflower (Phemeranthus calcaricus)

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Estimated Native Range
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Summary

Phemeranthus calcaricus, commonly known as Limestone Fameflower, is a deciduous perennial herb or subshrub native to limestone glades and rocky outcrops in the South Central United States. It typically grows to a height of 0.5 feet (0.2 meters) and a width of 0.3 feet (0.09 meters). The plant forms a low, cushion-like mound and is characterized by its succulent leaves and stems. The flowers, which are star-shaped and range in color from purple to pink and occasionally red, bloom profusely in the spring, summer, and fall and are quite showy, opening in the afternoon and closing by nightfall.

Limestone Fameflower is valued for its drought tolerance and unique flowering habit, making it a suitable choice for rock gardens, xeriscaping, and as a ground cover in dry, sunny areas. It thrives in full sun and requires well-drained soils, preferably with a limestone base, reflecting its natural habitat. While it is low-maintenance, it does not tolerate wet soils, especially in winter, which can lead to root rot. This plant is also appreciated for its ability to attract pollinators such as bees and butterflies.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb, Subshrub
  • Height: 0.5-1 feet
  • Width: 0.15-0.3 feet
  • Growth Rate: Moderate
  • Flower Color: Purple, Pink
  • Flowering Season: Spring, Summer, Fall
  • Leaf Retention: Deciduous

Growth Requirements

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

Common Uses

Drought Tolerant, Low Maintenance, Potted Plant, Rock Garden, Showy Flowers

Natural Habitat

native to limestone glades and rocky outcrops in the South Central United States

Other Names

Common Names:

Scientific Names: , Phemeranthus calcaricus, Talinum calcaricum,

GBIF Accepted Name: Phemeranthus calcaricus (S.Ware) Kiger