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Quaker Ladies

Houstonia Caerulea

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Overview

Houstonia caerulea, commonly known as Quaker Ladies or Bluets, is a charming perennial wildflower. Sporting sky-blue petals with a yellow center, it grows to a modest height of 6 inches. Preferring full sun to partial shade and moist, well-drained soil, it flourishes in USDA zones 3-7. Its delicate blooms emerge in spring, offering a low-maintenance ground cover ideal for rock gardens and naturalized woodland areas.

Sun HalfZones 3–9Type Annual, Ground cover, Herb, Perennial, WildflowerClimate Temperate
Quaker Ladies (Houstonia Caerulea) — or in woodland settings where they can create an enchanting ground cover; floating appearance.<br><br>For, image 157

Culture

Sun
Half
USDA zones
3–9

Shape & size

Mature height
3–4 Inches
Mature width
3–4 Inches

Classification

Type
Annual, Ground cover, Herb, Perennial, Wildflower
Family
Rubiaceae
Climate
Temperate

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Photos (178)

Quaker Ladies (Houstonia Caerulea) — often self-seeding to form natural colonies
Quaker Ladies (Houstonia Caerulea) — fostering a biodiverse garden ecosystem
Quaker Ladies (Houstonia Caerulea) — Preferring full sun to partial shade and moist, well-drained soil, it flourishes in USDA zones 3-7; they fare, image 57
Quaker Ladies (Houstonia Caerulea) — annual / ground cover / herb / perennial / wildflower with blue and white blooms; plant Houstonia caerulea in, image 80
Quaker Ladies (Houstonia Caerulea) — blue and white flowers in the garden; measuring about 0.5 inches in length, image 79
Quaker Ladies (Houstonia Caerulea) — plant Houstonia caerulea in well-draining soil and a location that receives full sun to partial shade
Quaker Ladies (Houstonia Caerulea) — These diminutive plants typically reach heights of 3 to 6 inches, with a similar spread
Quaker Ladies (Houstonia Caerulea) — annual / ground cover / herb / perennial / wildflower with blue and white blooms; plant Houstonia caerulea in, image 107
Quaker Ladies (Houstonia Caerulea) — They are also a favored nectar source for butterflies and other pollinators, image 158
Quaker Ladies (Houstonia Caerulea) — blue and white flowers in the garden
Quaker Ladies (Houstonia Caerulea) — evergreen rosette at the base.<br><br>The true allure of Quaker Ladies lies in their sky-blue flowers; often self-seeding
Quaker Ladies (Houstonia Caerulea) — These blossoms are about 0.5 inches in diameter and appear in profusion from early spring until early summer, image 121
Quaker Ladies (Houstonia Caerulea) — The flowers are perched atop thin
Quaker Ladies (Houstonia Caerulea) — Houstonia caerulea, commonly known as Quaker Ladies or Bluets, is a charming perennial wildflower; its, image 136
Houstonia Caerulea
Houstonia Caerulea
Houstonia Caerulea
Houstonia Caerulea
Houstonia Caerulea
Houstonia Caerulea
Houstonia Caerulea
Houstonia Caerulea
Houstonia Caerulea
Houstonia Caerulea
Photographs by 8 contributors

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