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Symphytum officinale (Comfrey)
Date | Action |
Jun 23 2008 | Netty (13946) added "5 to 10 feet (1 1/2 to 3 m)" to Height (Maximum) |
Jun 23 2008 | Netty (13946) added "5b (to -10 F / -23 C)" to Zones / Hardiness |
Jun 23 2008 | Netty (13946) added "5a (to -15 F / -26 C)" to Zones / Hardiness |
Jun 23 2008 | Netty (13946) added "4b (to -20 F / -29 C)" to Zones / Hardiness |
Jun 23 2008 | Netty (13946) added "4a (to -25 F / -32 C)" to Zones / Hardiness |
Jun 23 2008 | Netty (13946) added "Perennial" to Plant Types |