Wildflower Archive

woodland wildflower

Long-leaved bluets

Houstonia longifolia

Also known as Longleaf Summer Bluet, Pale Bluets

Long-leaved bluets (Houstonia longifolia)
Houstonia longifolia

Native to much of the USA and southern Canada

Maine to Saskatchewan, south to Georgia and Louisiana

  • Light Full sun to shade Sun tolerance
  • Moisture Dry Moisture preference
  • Zones 2–9 Cold to heat range
  • Bloom Jun–Jun Flowering time
  • Height up to 1 ft to 0.3 m
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A woodland wildflower for sun through shade and lean, dry soil. At up to 1 ft, it tucks into shade gardens and woodland edges. It shrugs off drought once established. Hardy in USDA zones 2–9.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Hardiness zones

Find your zone:

Pollinators & wildlife

  • Butterflies Karner Blue also Olympia Marble

Full plant details

Where it grows

Habitat
WoodlandThe wild plant community it grows in.
Native range
Much of the USA and southern CanadaUnited States (31): AL, AR, CT, DC, GA, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, NC, ND, NH, NJ, NY, OH, OK, PA, RI, SC, TN, VA, VT, WI, WV. Canada (1): ON. Where it grows wild on its own, by state and province.
Native distribution
Maine to Saskatchewan, south to Georgia and LouisianaThe same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Full sun to shadeHow much sun it takes, from full sun to full shade.
Moisture
DryThe soil dampness it prefers, from dry to wet.
Hardiness zones
USDA 2–9 · Canadian 2–7The cold-to-heat climate range it survives.
Soil
Moist, sandy or gravelly soilsThe soils it grows in naturally.
Drought tolerance
HighRelative to plants of the same type and region, inferred from where it grows, not a days-without-water figure.

Growth & form

Height
up to 1 ft (to 0.3 m)Typical mature height.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).

Flowers, foliage & fruit

Type
WildflowerWhat kind of plant it is.
Bloom
Jun–JunWhen it flowers.
Flower color
White, Pink, PurpleThe bloom color, or colors.
Toxicity
None knownWhether any part is poisonous to people or pets.