Great Blue Lobelia

Great Blue Lobelia (Lobelia siphilitica) is a stunning native perennial that brings vibrant blue color and vertical interest to late-summer landscapes. Known for its upright spikes of intense true-blue flowers, this hardy wildflower blooms from mid to late summer, attracting a wide variety of pollinators including bees, butterflies, and hummingbirds. Reaching a mature height of 2 to 3 feet, it makes an eye-catching statement in rain gardens, native plantings, and wetland edges. This low-maintenance native thrives in moist, rich soil and tolerates full sun to partial shade, making it a versatile addition to a variety of garden settings. Great Blue Lobelia is especially effective in areas with consistent moisture, such as alongside ponds, in rain gardens, or in shaded woodland borders. Its bold blue blooms stand out beautifully against green foliage and provide a colorful contrast when paired with yellow or white-blooming natives like Rudbeckia or Chelone. In addition to its ornamental beauty, Lobelia siphilitica is an ecologically valuable plant that supports local wildlife and enhances biodiversity. It is deer resistant, cold hardy, and ideal for naturalistic landscapes, pollinator pathways, and meadow-style gardens. Whether you're restoring native habitat or simply adding seasonal color to your garden, Great Blue Lobelia is a dependable and rewarding choice.