Clasping Bellflower

(Triodanis perfoliata subsp. biflora)

Clasping Bellflower (Triodanis perfoliata subsp. biflora)

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Climate Requirements

Precipitation 14" - 76"
High Temp. 82°F - 96°F
Low Temp. 31°F - 43°F

Summary

Triodanis perfoliata subsp. biflora, commonly known as Small Venus’ Looking-Glass, is an annual herb that is native to a variety of habitats across North America, including prairies, meadows, open woodlands, and along roadsides. It is a rapid grower, reaching heights of 0.5-2.5 feet (0.15-0.8 meters) and is known for its distinctive purple, bell-shaped flowers that bloom in the spring and summer, adding a splash of color to the landscape. The flowers are showy, attracting pollinators such as bees and butterflies.

Small Venus’ Looking-Glass is valued for its ornamental flowers and its ability to thrive in a range of conditions, making it a versatile choice for wildflower gardens, meadow plantings, and as a filler in borders. It is relatively low-maintenance and can adapt to clay, loam, or sandy soils with medium to fast drainage. It prefers full sun to part shade, which allows for optimal flowering. While it is not commonly known for any significant problems, it can self-seed prolifically, which may be undesirable in some settings.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 0.5-2.5 feet
  • Width: 0.5-1 feet
  • Growth Rate: Moderate
  • Flower Color: Purple
  • Flowering Season: Spring, Summer
  • Leaf Retention:

Growth Requirements

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

Common Uses

Bee Garden, Butterfly Garden, Low Maintenance

Natural Habitat

Prairies, meadows, open woodlands, and along roadsides

Other Names

Common Names: Venus’s Looking Glass, Clasping Bellwort

Scientific Names: Triodanis perfoliata subsp. biflora, Asyneuma anhuiense, Campanula biflora, Campanula intermedia, Campanula intermedia, Campanula ludoviciana, Campanula ludoviciana, Campanula montevidensis, Dysmicodon californicum

GBIF Accepted Name: Triodanis perfoliata subsp. biflora