Blue Cardinal Flower (Lobelia siphilitica)

A bit more sun-tolerant than the Red Lobelia, the blue spikes of this native flower in August and September with the same upright growth habit and a bushier shape. Growing 3–4' tall. The blue Lobelia likes a moist to average growing situation.
Height: 3 - 4 ft

Spacing: 18 in

Hardiness Zone: 4 – 8

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