Aster cordifolius, blue wood aster

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Blue wood asterAster cordifolius Hardiness: Zones 3 to 8Plant type: Herbaceous perennialHeight: 2- 5'Spread: 1.5- 2'Sun: Part shade to full sunWater: Dry to mediumBloom time: Septe mber, OctoberBloom color: Pale blueSoil: Loamy, average well-draining soils, neutral (≈7) Notes: Self-seed to the point that some describe the plant as “weedy”. This is not a big issue in a natural setting but in smaller more manicured gardens, spent flowers can be removed to prevent seed formation. More information on this plant here. Show more