I was hoping you'd post your results- this is very useful information. I'm sorry your tenderer citrus didn't make it, but glad to hear your Citrumelo survived. Out of curiousity, was your Yuzu on deciduous trifoliate rootstock? Over on the Tropical fruit forum a guy with the stage name 'eyeckr' reports his grafted Yuzu survived an extended freeze at 6F near Virginia Beach, just 2F higher than your 4F, so it appears that, between his and your results, reports that Yuzu can survive 5F are just at the right edge.
Statistics: Posted by jim — Thu May 22, 2014 6:51 am