With tall spires of deep blue to violet flowers, Great Blue Lobelia adds rich color to summer gardens and wetland edges. It grows 2–4 feet tall and blooms from August into October, drawing pollinators with its tubular, two-lipped blossoms.

Prefers full sun to part shade and moist to wet soils, thriving in rain gardens, streambanks, and consistently damp spots. Tolerates occasional flooding and benefits from rich, organic soil.

Forms upright, clumping colonies that stay where planted and mingle well with other moisture-loving natives. Works beautifully in the middle of a border or naturalistic planting.

Native to eastern and central North America, found in wet meadows, floodplains, woodland edges, and along streams and ditches.

Green foliage emerges in spring and builds to tall, leafy stems topped with blue flowers in late summer. Blooms fade gracefully in fall, followed by dry seed capsules that persist into early winter.

A favorite of bumblebees, especially long-tongued species that can access its deep flowers. Supports native pollinators and adds diversity to wetland ecosystems.