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Polemonium caeruleum (Jacob's Ladder, Greek Valerian)


Date Action
Jun 29 2008Netty (13946) added "1 to 1 1/2 feet (30 to 45 cm)" to Height (Maximum)
Jun 29 2008Netty (13946) added "5b (to -10 F / -23 C)" to Zones / Hardiness
Jun 29 2008Netty (13946) added "4b (to -20 F / -29 C)" to Zones / Hardiness
Jun 29 2008Netty (13946) added "4a (to -25 F / -32 C)" to Zones / Hardiness
Jun 29 2008Netty (13946) added "3b (to -30 F / -34 C)" to Zones / Hardiness
Jun 29 2008Netty (13946) added "Perennial" to Plant Types
Jun 29 2008Netty (13946) added "Greek Valerian" to Common Names
Jun 29 2008Netty (13946) added "Jacob's Ladder" to Common Names