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Common Name: swamp verbena
The tall thin spikes of Blue Vervain grace the wet meadows of the US in July and August. Verbena hastata is a short-lived perennial that readily self sows where happy. A great plant for pond's edge where it seeds in between sedges and rushes and cheerfully holds its own.
Height: 4-6 Feet
Spread: 2-3 Feet
USDA Hardiness Zone: 3-9