Great Blue Lobelia is a herbaceous perennial that may grow 3 to 4 feet tall. The leaves are alternate with a toothed margin. 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. [North Carolina Extension Gardener Plant Toolbox]
Larval Host for the
2-3'
1-1.5'
SIZE
SOIL
Moist, Wet
LIGHT
Sun, Part Sun, Shade
BENEFITS
Hummingbirds, Butterflies
NOTES
Deadhead for a neater appearance; pinch back for a fuller appearance. Do not cut back in fall, but mulch lightly. Divide clumps in spring, if needed.
CHARACTERISTICS
Good Border Plant, Showy, Long Blooming, Tolerates Clay, Low Maintenance, Deer Resistant, Rabbit Resistant
July, August, September, October
Flower
This
flowers in
Great Blue Lobelia
Lobelia siphilitica
DETAIL VIEW
DESCRIPTION
Great Blue Lobelia is a herbaceous perennial that may grow 3 to 4 feet tall. The leaves are alternate with a toothed margin. 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. [North Carolina Extension Gardener Plant Toolbox]