Conoclinium coelestinum, Blue mistflower

Blue mistflowerConoclinium coelestinum, Eupatorium coelestinumHardiness: Zones 5 to 9Plant type: Herbaceous PerennialHeight: 1.5- 3'Spread: 1.5- 2.5'Sun: Part shade to full sunWater: Medium to wetBloom time: September, OctoberBloom color: BlueSoil: Moist, organically rich soils, Prefers moist, fertile, humusy soils which do not dry out., Neutral (≈7) Notes: Can spread aggressively by rhizome. More information on this plant here.