Lobelia cardinalis
Lobelia cardinalis Overview Uses: Rain gardens, pond edges, streambanks, naturalized plantings, and moist borders. Benefits: Brilliant red flower spikes; thrives in consistently moist to wet soils; supports hummingbirds and pollinators. USDA Hardiness Zones: 3–9 Sun: Full Sun to Partial Sun/Shade Life Cycle: Hardy Perennial Growth Habit: Upright, Clumping — vertical flowering spikes rising above basal foliage. Bloom Color: Scarlet Red Mature Height: 2–4 feet Mature Width: 1–2 feet Bloom Season: Mid to Late Summer Growth Rate: Moderate Summary Cardinal Flower is a native perennial known for its striking red blooms and adaptability to moist garden conditions. Lobelia cardinalis produces tall spikes of vivid scarlet flowers in mid to late summer, providing vertical structure and seasonal color. Its upright form makes it especially effective in rain gardens, near water features, or in consistently moist borders. Native to North America, it supports hummingbirds and other pollinato