Wellington gets frost which kills plants, Auckland doesn't. Which would cover minimum temperatures, wouldn't it Andrew? It all came up as someone saw my name on the PBS who also lives in Auckland. And asked how I knew what my zoning was. Ina Crossley Auckland New Zealand Zone 10 On 15/02/2013 7:13 p.m., AW wrote: > Nevertheless, I'd still expect Auckland, surrounded by so much > influence from the sea to be subject to a smaller range of temperature and > probably a higher values for the range of minimum temperatures (the basis > for the hardiness definition).