Eryngium agavifoliumArchitectural, evergreen perennial. Rosettes of long, sharply toothed, sword-shaped leaves. Small, green flower-heads on branched stems. | Flowering period: Late summer. | | Growing conditions: Dry, well-drained soil. Protect from winter wet. | | Typical mature height: 72 inches ( 183 cms ) | | Hardiness: - to discuss further | |

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