Great Blue Lobelia

(Lobelia siphilitica)

Other Information

Physical Characteristics

Type: Herbaceous Perennial

Height: 2 - 3 ft

Spread: 1 - 1.5 ft

Flower Color: Blue / Purple

Flower Time: Late Summer (Aug - Oct)

Fruit Type: Seed Capsule

Fruit Color: Green / Brown

Autumn Color: Insignificant

Sun Conditions: Full Sun / Part Shade

Shade Tolerance: Medium

Moisture Preference: Medium / High

Deer Resistance*: High

Dog Safe**: No (Toxic)

Conservation Status (MD): SNR - Unranked

Other Names: Blue Cardinal Flower

*Deer resistance can vary based on many factors

**Always consult with a veterinarian about plants toxic to dogs and other animals

Wildlife Benefits:

Great Blue Lobelia is a pollen and nectar source for pollinators including bees and butterflies. It also attracts hummingbirds. It is a larval host to a couple moth species.

Plants similar to Great Blue Lobelia: