Hi, Calin,
I'll find a photo of the whole trough and post it in the Rock Gardening forum. Yes, it and the other plants in that trough have been in the same trough for about 15 years or so, since I bought them.
Yes, hypertufa toughs can be extremely durable. Note: That's here in what I refer to as "real" winters, that is, snow and cold for almost half the year, with melting and freezing. (None of that "zone 8, flowers in January" business here!
) Durability depends entirely on the quality of the hypertufa recipe and the handling of it while making the trough.
Edit: I added some photos in the Rock Gardening forum here:
http://garden.org/thread/view_...
