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Lobelia siphilitica - Blue Cardinal Flower

Perennials

Lobelia siphilitica

Blue Cardinal Flower

Lobelia siphilitica, or Blue Cardinal Flower, is a Missouri native perennial which likes moist soil. It will naturalize along ditches and streams and features spires of colorful hood-like flowers on stately spikes in late summer and fall. Attracts hummingbirds, bees and butterflies but not deer! Makes an excellent cut flower.

Additional:

Missouri Native on the MSD Stormwater BMP Native plant list used in Bioretention & Organic Filters-Formal applications.

Blue Cardinal Flower Growing and Maintenance Tips:

Easily grown in rich, medium to wet soils in full sun to part shade. Needs constant moisture. It handles full sun to partial shade (the drier the soil the less sun it should receive).

Height:

24-36 Inches

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Spread:

12-18 Inches

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Hardiness Zone:

4 - 9

Characteristics & Attributes for Lobelia siphilitica

Exposure
Sun
Partial Shade
Soil Moisture Preference
Wet
Average
Moist
Attracts Wildlife
Butterflies
Hummingbirds
Critter Resistance
Deer Resistant
Season of Interest (Flowering)
Summer
Fall
Attributes
Cut Flower
Focal Point
Mass Planting
Native
Border or Bed
Naturalizing
Great Companion Plants for Lobelia siphilitica
Loosestrife Loosestrife (Lythrum virgatum 'Morden's Gleam')
Turtlehead Turtlehead (Chelone obliqua )
Milkweed, Swamp Milkweed, Swamp (Asclepias incarnata )
Swamp Milkweed Swamp Milkweed (Asclepias incarnata 'Ice Ballet')
Japanese Iris Japanese Iris (Iris ensata 'Harlequinesque')
Copper Iris Copper Iris (Iris fulva )
Hydrangea Hydrangea (Hydrangea macrophylla 'Inspire')
Similar Plants to Lobelia siphilitica
Cardinal Flower Cardinal Flower (Lobelia cardinalis )