Species Name: Lobelia siphilitica
Common Name: Great Blue Lobelia
Zone: 3 to 8
Light: Light Shade to Half
Shade
Soil Moisture: Medium,
Moist, Wet
Soil Types: Sand, Loam,
Clay
Fertility: Medium to Rich
pH: 4 to 6.0
Bloom Time: July to
September
Habit:
Great blue
lobelia is covered in deep blue flowers on
2 to 3 ft tall stalks from late July through
September. It attracts hummingbirds and insects in abundance. Adapted to moist poorly drained soils in
shade it readily grows in any average moderately rich garden soil. Very deer
resistant.
It is naturally found in swamps,
floodplain forests, and low wet woods. Fairly short lived but easily reseeds
itself. It primarily naturalizes
from countless tiny seeds dispersed through flooding and soil disturbance.

