Flower Notes:
Blue;purple;pink (Blue flowers - acidic soil; purple flowers - slightly acidic soil; pink flowers - alkaline soils; summer)
Foliage Notes:
Green (Dark green summer foliage); Yellow (Fall; pale yellow, generally not overwhelming)
Fruit Notes:
Brown (Capsule; not ornamentally important)
Soil Notes:
Needs moist organic soil; highly acidic soil (pH 5.0-5.5) = blue flowers, slightly acidic soil (pH 5.5-6.0) = purple flowers, alkaline soil (pH 6.0-6.5) = pink flowers
Diagnostic Characteristics:
Leaves (4-8" long by 3-6" wide) are simple, serrated, and opposite in arrangement. Large leaf scars. Stems emerge from ground with few branches. Flower panicles persist and occur on both new and old growth so that plants bloom all through summer and well into fall.