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Lobelia siphilitica

Lobelia siphilitica

Cardinal Flower - Big Blue

Big Blue Lobelia has clear blue flower spikes appearing in August and September, attracting hummingbirds, bumblebees and long-tounged bees. Given enough moisture, Lobelia siphilitica does well in full sun, even more than L. cardinalis. Very wet site tolerant, and naturalizes well from seed.  Plants are indigenous to wet prairies, soggy meadows, edges of ponds, wet pastures.  

Height

36 Inches

Spread

18 Inches

Bloom Color

Blue

USDA Hardiness Zone

4
Current Availability
Qty Avail Description Comments Future Crop Future Crop Ready Date
587 Lobelia siphilitica #1 (NATIVE-big blue) 300 late June
Characteristics & Attributes
Attributes
Deer Resistant
Full Shade
Native
Native - Straight Species
Rain Garden Plants
Self-Seeds
Soil Conditions
Moist
Wet
Bloom Time
Fall
Summer
Exposure
Partial Shade/Shade Tolerant
Sun
Attracts Wildlife
Attracts Butterflies
Attracts Hummingbirds
Attracts Pollinators
Tolerance
Black Walnut Tolerant
Wet Site Tolerant
Foliage Color
Green
Companion Plants to Lobelia siphilitica
Gray's Sedge Carex grayi
Gray's Sedge
Turtlehead Chelone glabra
Turtlehead
Joe Pye Weed Eupatorium maculatum 'Phantom'
Joe Pye Weed
Similar Plants to Lobelia siphilitica
Purple Giant Hyssop Agastache rugosa 'Golden Jubilee'
Purple Giant Hyssop
Hoary Skullcap Scutellaria incana
Hoary Skullcap
Turtlehead Chelone glabra 'Black Ace'
Turtlehead