Long-Leaved Bluet

(Houstonia longifolia)

Long-Leaved Bluet (Houstonia longifolia)

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Estimated Native Range
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Summary

Houstonia longifolia, commonly known as Long-Leaved Bluet, is a deciduous perennial herb native to open woodlands, grassy slopes, and rocky outcrops in the Central and Eastern USA and Southern Canada. It typically grows to a height of 0.5-0.7 feet (0.15-0.2 meters) and can spread to about 3 feet (0.9 meters) wide. The plant forms a low, tufted mound and is characterized by its narrow, lanceolate leaves and small, star-shaped flowers that are purple, pink, and white, blooming profusely in the spring and early summer. The flowers are quite showy despite their size, attracting pollinators such as bees and butterflies.

Long-Leaved Bluet is valued for its delicate flowers and its ability to form a dense carpet of foliage, making it an excellent choice for rock gardens, border fronts, and as a ground cover. It is also used in native plant gardens and restoration projects. This plant is relatively low-maintenance, requiring minimal care once established. It prefers well-drained soils and can tolerate drought, although it benefits from occasional watering during prolonged dry spells. Long-Leaved Bluet thrives in full sun to part shade conditions. While generally pest and disease-free, it can suffer from root rot if planted in poorly drained soils.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 0.5-0.7 feet
  • Width: 2-3 feet
  • Growth Rate: Moderate
  • Flower Color: Pink, Purple, White
  • Flowering Season: Spring, Summer
  • Leaf Retention: Deciduous

Growth Requirements

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

Common Uses

Bee Garden, Groundcover, Low Maintenance, Showy Flowers

Natural Habitat

Open woodlands, grassy slopes, and rocky outcrops

Other Names

Common Names: Long-Leaf Bluet , Longleaf Summer Bluet

Scientific Names: Hedyotis longifolia , Houstonia longifolia , Houstonia tenuifolia , Hedyotis purpurea var. longifolia , Houstonia purpurea var. longifolia , Chamisme longifolia , Oldenlandia purpurea var. longifolia

GBIF Accepted Name: Houstonia longifolia Gaertn.