| Jul 14 2009 | TheBip (172) added "9a (to 25 F / -4 C)" to Zones / Hardiness |
| Jul 14 2009 | TheBip (172) added "8b (to 20 F / -7 C)" to Zones / Hardiness |
| Jul 14 2009 | TheBip (172) added "8a (to 15 F / -9 C)" to Zones / Hardiness |
| Jul 14 2009 | TheBip (172) added "7b (to 10 F / -12 C)" to Zones / Hardiness |
| Jul 14 2009 | TheBip (172) added "6b (to 0 F / -18 C)" to Zones / Hardiness |
| Jul 14 2009 | TheBip (172) added "6a (to -5 F / -21 C)" to Zones / Hardiness |
| Jul 14 2009 | TheBip (172) added "5b (to -10 F / -23 C)" to Zones / Hardiness |
| Jul 14 2009 | TheBip (172) added "5a (to -15 F / -26 C)" to Zones / Hardiness |
| Jul 14 2009 | TheBip (172) added "4b (to -20 F / -29 C)" to Zones / Hardiness |
| Jul 14 2009 | TheBip (172) added "4a (to -25 F / -32 C)" to Zones / Hardiness |
