It has been very rough the last couple years. I don't think we have had but 20 plants survive the past two winters. We planted the first of our plants in 2009. And we really have never had much of a problem with the plants not surviving the winter. That all changed over the last couple years. Winter of '13-'14 was extremely cold. I expect most of our plant death that winter was caused by extreme temperatures. We replaced our plant stock, the majority of it was replaced with a new varietal of lavender that was reported to be much more hearty and able to survive winters in Maine and Michigan. We planted several thousand of the phenomenal varietal in the summer of 2014. We also did some additional experimentation with row covers for the winter of '14-'15. None of our phenomenal plants survived. We had our soil checked by Iowa State University labs and had some extensive conversations with the supplier of the phenomenal lavender. We are still uncertain what caused the problems last year, but we are very happy with how the plants seem to be looking coming out of the winter. There is significant amounts of green in all the plants and if we continue to have a warm spring, we are hoping for an early bloom. keep your fingers crossed!!