Great Blue Lobelia or Cardinal Flower

Lobelia siphlitica

  • Erect habit with lavender- blue flower spikes in July- October
  • Moist to wet clay, loam or sandy soils in sun/ pt.shade
  • Tolerates drier locations than L. cardinalis
  • Natural habitat: moist woodlands, meadows, swamps
  • Attracts birds and hummingbirds
  • Special value to bumble bees and other native bees

Height: 36-48 in
Spread: 12-18 in
Zone: 3-8
Color: Blue

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Characteristics & Attributes

Foliage Color:

» Green


» Sun/ Part Shade

Soil Moisture:

» Average Water
» Moist, Well Drained
» Water Garden


» Upright

Season of Interest (Flowering):

» Summer