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Houstonia canadensis Willdenow ex Roemer & J.A. Schultes. Canada Bluet. Phen: Apr-Aug. Hab: Dry limestone barrens (sometimes locally abundant in shallow soils over limestone), limestone woodlands and outcrops. Dist: ME and s. ON west to MI and n. IL, south to sw. VA, se. and c. TN, nw. GA, w. TN, and se. MO (J. Thomas, pers. comm., 2016).

Origin/Endemic status: Native

Taxonomy Comments: Terrell (1959) determined that Houstonia setiscaphia (allegedly a narrow endemic of sw. VA) fell within the range of variation of southern populations of H. canadensis. Further study is perhaps warranted.

Synonymy ⓘ: = G, Il, K1, K3, K4, Mi, NY, Pa, Tn, Va, W, WV, Terrell (1959), Terrell (1991), Terrell (1996); = Hedyotis canadensis (Willd. ex Roem. & Schult.) Fosberg – C, Rogers (1987); = n/a – RAB; > Houstonia canadensis Willd. ex Roem. & Schult. – F; > Houstonia canadensis Willd. ex Roem. & Schult. var. setiscaphia (L.G.Carr) C.F.Reed; > Houstonia setiscaphia L.G.Carr – F

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Heliophily ⓘ: 8

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image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷

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Horticultural Information

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Height: 4-6 in.

plant sale text: Bluets are a diminutive and well-loved wildflower, found from the edges of high mountain paths to the lawns and meadows of the piedmont and coast. Canada bluet is found on limestone outcrops in the Western part of North Carolina. The tiny flowers are a sure sign that summer is on its way. Clump several plants together in a well protected spot such as the edge of a woodland path or a niche in some small rocky spot of your garden. Bluets dislike competition, but they are tough and will reward you with clumps of rosettes covered in a light rose haze if given the proper space.

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native range: Eastern and Central United States