yes we all need one pile like that
i know that will eventualy some dendro will burn to the ground with some winter, but i am humble man, i just need few thick shoots per year nothing else
i got young dendro giganteus that burned two winters ago to the ground at one night 22F(last minus like that was winter 50yrs ago), but that summer put few shoots bigger than year before, and this winter was one night 24F it also burned to the ground and it recover very well, waiting to see new culms will it be bigger than last summer...
oldhamii shoots also was damaged a little but nothing serious...
dendro asper and latiflorus were covered in plastic greenhouse and had just minor leaves burn with 24F..and you see above shoot that coming out..
i also am not fan of multiplex, its to bushy and small for me...looking forward to see chungiis when they start to shoot blue culms, got 10 seedlings for now and amoneus also and according to data on the net both can take serious minuses....
i am always trying to push zone and while plants are still young protecting them for first few winters...
with bamboo it will eventualy be a problem with their heights but lower parts will survive and stay strong enough to give me new shoots nex summer..
here my way of protecting
http://www.mediterraneannature.com/wint ... or-plants/
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Ante Karanušić, USDA zone 9A/B, Split, Croatia
http://www.mediterraneannature.com/