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Centaurea montana (Mountain Bluet, Perennial Cornflower)
| Date | Action |
| Aug 04 2008 | Netty (13946) added "4b (to -20 F / -29 C)" to Zones / Hardiness |
| Aug 04 2008 | Netty (13946) added "5a (to -15 F / -26 C)" to Zones / Hardiness |
| Aug 04 2008 | Netty (13946) added "5b (to -10 F / -23 C)" to Zones / Hardiness |
| Aug 04 2008 | Netty (13946) added "6b (to 0 F / -18 C)" to Zones / Hardiness |
| Aug 04 2008 | Netty (13946) added "Perennial" to Plant Types |
| Aug 04 2008 | Netty (13946) added "Ornamental" to Plant Types |
| Aug 04 2008 | Netty (13946) added "Mountain Bluet" to Common Names |
