woodland wildflower
Long-leaved bluets
Houstonia longifolia
Also known as Longleaf Summer Bluet, Pale Bluets

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
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
Hardiness zones
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.