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How to Grow
Jun, Jul, Aug
Perennials, Ground Cover, Perennial
2 to 3 in. clusters of purple to lilac flowers that bloom summer to fall on stiffly erect spikes
Mericarps c. 2 mm long, raised-reticulate in the upper part, with 5 slender costae towards the base, minutely densely whitish tuberculate at the commissural face.