Blue Cardinal Flower (Lobelia siphilitica)
[lo-BEE-lee-ah sif-il-IT-ih-kah]
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Deciduous Perennial Mounded in the Campanulaceae Family
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Blue Cardinal Flower enchants with its striking blue blooms, creating a stunning contrast in any garden. This perennial thrives in wet areas, attracting pollinators while adding a touch of elegance to your landscape. |
Great Blue Lobelia, a herbaceous perennial, is usually unbranched but may exhibit some branching. The erect, 3-4 ft., stems produce lavender-blue, tubular flowers crowded together on the upper stem. Showy, bright blue flowers are in the axils of leafy bracts and form an elongated cluster on a leafy stem. Each flower is split into two lips - the upper lip has two segments and the lower lip has three. Blue flowers first mature in mid-summer and continue into early fall. The flowers are larger than other Lobelias and have stripes on the tube portion.
This plant provides late summer bloom to the perennial border, wild garden, native plant garden, woodland garden, or naturalized planting. It is also effective near ponds or streams.
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Pros
Native to North America Native to Illinois
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Plant Data |
Mature Size |
24 - 36 inches
tall. 12 - 18 inches
wide.
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Sun Exposure |
Partial Shade - Full Sun |
Moisture Tolerance |
Medium - Wet: Plants tolerate sunny sites if sufficient moisture is present.
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Zones |
4a - 9b
(Usually hardy to -30° F)
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Tags |
Attracts Bees, Attracts Beneficial Insects, Attracts Birds, Attracts Butterflies, Attracts Hummingbirds, Attracts Pollinators, Attracts Wildlife, Colorful Foliage, Container, Deciduous, Deer Resistant, Drought Tolerant, Edging, Formal Garden, Fragrant Flowers, Full Sun, Good for Accents, Good for Beginners, Good for Borders, Good for Butterfly Garden, Good for Cottage Garden, Good for Cut Flowers, Good for Rain Garden, Good for Rock Garden, Illinois Native, Low Maintenance, Medium, Most Popular, Native to North America, Naturalizing, Normal Soil, Partial Shade, Partial Sun, Perennial, Pond, Popular For Fall, Prairie Garden, Rabbit Resistant, Shade Tolerant, Showy Flowers, Tolerant of Clay Soil, Tolerant of Moist Soil, Tolerant of Sandy Soil, Well-Drained Soil, Wet, Wet Site Tolerant, Woodland Garden
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Bloom Period |
July to October
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Flower Color |
Blue
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Animals That Use It |
Flowers:
Nectar:
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Most Popular Plants |
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More Info from Experts |
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Commonly Planted with...
Bee Balm, Black-eyed Susan, Wild Bergamot, Ironweed, Swamp Milkweed, Blue Flag Iris, New England Aster, Cardinal Lobelia, Culver's Root.
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Photos of This with...
Joe Pye Weed
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