Hi, new here, though I've spent the past month or so scouring the web for info about hardy citrus. I'm also in 7b and recently acquired an Owari (on trifoliate roots) from Stan McKenzie. Going to put it in the ground, as I have a fairly warm microclimate (urban area, protected from wind, side of a gentle slope, etc), and plan to use a portable greenhouse, Christmas lights, water buckets, etc to even out temp extremes. I've already got a few container citrus and I love experimenting and trying fairly inadvisable things.