A charming little blue flower found in dainty knee-high clusters along streams or along the marshy edges of lakes, I first encountered this adorable skullcap growing directly out of a beaver dam. Showy tube-shaped blue flowers with white throats appear between the leaves from June through September, followed by small, slightly reddish seed capsules. Leaves are an attractive bright green, and form opposite pairings along the stem. Tolerates poorly-drained soil and occasional flooding, and quickly forms clumps by rhizomes. Interestingly, this species is circumboreal, meaning it's native throughout the northern temperate zone (not only in the Americas!).
1-2.5 foot tall
Plant Hardiness Zones: 2b-6a
Native Range: ME south to NC and TX, west to CA, north to WA. Native throughout Canada, excluding NU. Rare in DE, MD, VA, WV, MO, KS, TX and CA
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