Great Blue Lobelia (Lobelia siphilitica) has beautiful flowered spikes that attract many hummingbirds, bees, and butterflies. This showy but short-lived perennial will add a wonderful tone of blueish purple to your garden with medium to wet soil. Great Blue Lobelia forms clumps, easily self seeds, and is known to be deer resistant.   Light: Full Sun, Partial Sun Moisture: Moist to Wet Soil Type: Clay, Loam, or Sand Soil pH: 6 - 7 Average Height: 1 - 4 Feet Flowers: Tubular, blue-violet flowers clustered densely on tall spikes, each bloom about an inch long Bloom Time: July- September Native Region: Eastern and Central North America Wildlife: Pollinators Additional Notes: Thrives in areas like rain gardens or pond edges where moisture is consistent