Lobelia siphilitica (Blue Cardinal Flower)


12 in stock

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1 Gallon Pot. Native. Lobelia siphilitica, commonly called great lobelia or blue cardinal flower, is a clump-forming perennial which features light to dark blue, tubular, 2-lipped flowers with the three lobes of the lower lip appearing more prominent than the two lobes of the upper lip. Flowers arise from the upper leaf axils forming a dense terminal raceme atop stiff, unbranched, leafy stalks typically rising 2-3′ tall. Finely-toothed, lance-shaped, light green leaves (to 5″ long). Late summer bloom period.

Common Name: blue cardinal flower
Type: Herbaceous perennial
Family: Campanulaceae
Native Range: Eastern North America
Zone: 4 to 9
Height: 2.00 to 3.00 feet
Spread: 1.00 to 1.50 feet
Bloom Time: July to September
Bloom Description: Blue
Sun: Full sun to part shade
Water: Medium to wet
Maintenance: Low
Suggested Use: Naturalize, Rain Garden
Flower: Showy
Tolerate: Deer, Heavy Shade, Wet Soil