Great Blue Lobelia

Lobelia siphilitica

Great Blue Lobelia forms a flower spike covered in deep blue flowers from late summer to early fall. It can form colonies when happily sited in medium to wet soils in light shade, but is not overly aggressive …

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In stock
SKU
35660-03 / 15660
Plants 3" Pots
1-4 $5.99 ea.
5-10 $4.99 ea.
11-31 $3.99 ea.
32+ $2.99 ea.
Seeds 470,000 seeds/oz
1/4 Oz $16.00
1/2 Oz $24.00
Oz $40.00
Lb $600.00
Cultural Details
Soil Type Clay, Loam, Sand
Soil Moisture Medium, Moist
Sun Exposure Full Sun, Partial
Height 1' - 4'
Bloom Color Blue
Bloom Time July, Aug, Sep
Spacing 1'
Zones 3, 4, 5, 6, 7, 8, 9
Root Type Fibrous
Benefits Butterflies, Pollinators, Hummingbirds, Host Plant, Deer Resistant
Seeds per Oz 470000
Propagation Treatment Moist Stratification
Days to Moist Stratify 30 days
Direct Sowing Time Early Spring, Fall

Great Blue Lobelia forms a flower spike covered in deep blue flowers from late summer to early fall. It can form colonies when happily sited in medium to wet soils in light shade, but is not overly aggressive. Combine Blue Lobelia with Cardinal Flower for a stunning color combo that will bring in the hummingbirds. Excellent for damp clay soil.