I started growing Oregano from seed successfully last year and all the plants have endured tremendously this winter. I'm not sure how they will fair in other climates lower than Zone 8, but they have been through some extreme heat and intense cold.. ok I know... it gets cold for like a week here. But still:) It's comforting to know that if Oregano is in a happy place it's going to thrive. I'm very proud of the Oregano. Hopefully this year I will be able to save some seeds from this plant and prolong it's genetics.