Blue Cardinal Flower

About this plant

Lobelia siphilitica, commonly known as Blue Cardinal Flower, is a stunning perennial celebrated for its intense, true-blue blossoms. Rising gracefully on sturdy stems, these captivating flowers create a dramatic vertical accent in the late summer and early fall garden, attracting a parade of pollinators. Thriving in consistently moist to wet conditions, this native beauty is an exceptional choice for rain gardens, pond margins, or boggy areas where other plants might struggle. Its upright growth habit and brilliant coloration make it a focal point in any landscape demanding a touch of natural splendor. Easy to grow and relatively low maintenance, the Blue Cardinal Flower offers an elegant solution for adding long-lasting color and ecological value to your garden, ensuring a spectacular display year after year.

Care & maintenance

Requires consistently moist to wet soil. Mulch to retain moisture, especially in drier climates. Can be divided every 2-3 years in spring to maintain vigor. Deadhead spent blooms for a tidier appearance, though this is not strictly necessary.