Blue Cardinal Flower Size:1 Gallon Pot this rare tropical house plant

this rare tropical house plant is a collectible and is often hard to come by

giving this viburnum year-round interest

large flowering shrub or flowering tree that produces prolific lavender-blue flower spikes

and small gardens

Blue Cardinal Flower Size:1 Gallon Pot this rare tropical house plantBlue Cardinal Flower Plants for Sale Online The Blue Cardinal Flower (Lobelia siphilitica) is a pollinator perennial known for its beautiful bright blue flowers. The trumpet shaped flowers sit atop long stems, attracting butterflies and hummingbirds. It is a hardy native perennial with large, bright green foliage and blue blooms that appear mid to late summer. The Blue Cardinal Flower thrives in a variety of conditions and can tolerate part sun or