Where did you come by that, Blue? And is there a mature example somewhere that you have seen?

+oM

Tom

I received some plants from a guy in Finland
where the parent plants grow.I would say that
the plant is z4 hardy.

Is the underside a silvery white like the species Thuja koraiensis?

Does Thuja koraiensis turn brown in winter like the American species or does it stay green?
'Green Giant' was mostly green for me for a couple winters, but for some odd reason went brown this winter, even though it was very mild.

Yes it has a silvery underside like T koraiensis