USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
I have Irish Ivy and A LOT OF IT. We bought a house in Feb. 2015 and 3/4 of the yard is Irish Ivy! It's climbing the trees, the fences, a...Read More
I just purchased a plant that was just marked "ivy". After doing some research here on DG, I believe it is of the Irish variety. I only i...Read More
Please do not plant this in the United States. Especially do not "plant at the edge of dead trees as you walk through the woods." I under...Read More
Ivy of any variety is a highly invasive and should only be used in very controlled situations. I have a half-acre of woods behind my hous...Read More
This is just about my all time favorite species of ivy. I make dozens of cuttings a month, and bring them into the woods with me when I ...Read More
If there was one plant in the plant kingdom that I would exterminate, this would be it. It is a pernicious parasitic pest that is killing...Read More