I covered mine with some boxes taped together on the coldest nights, but even then the leaves suffered pretty bad. It grew back pretty quick between cold spells, though. I would say Paggi is not very cold hardy, but it was so young it's hard to say definitively HOW cold hardy it may or not be. Ask me again in a year...
As for the fruit turning black, it seems to be something that "gets inside" the bunch. My last bunch was doing well, filling in good. Then a varmint bit into a couple and there was a discoloration that began spreading which caused the top hand to ripen prematurely, so I cut the bunch, which seemed to halt the spread, but it was still pretty early. The fruits did not ripen properly. They darken from the flower end before ripening fully.
With the other two bunches I lost, I had cut the bud and the problem seemed to begin at the cut with a discoloration followed by blackening. Blossom or cigar end rot maybe... But why would it not affect uncut bunches? (The one developed normally until the vermin bit it.) Why would it travel inside the plant yet when cut there is no discoloration inside the stem of the bunch or the PS? How did I get it? I had no problems like this before the hurricane last year. It's a conundrum to be sure, one I hope doesn't spread to other plants. I just can't believe nobody else has had this...
It is frustrating. Aggravating. Maddening...
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Varieties I supposedly bought: Manzano, Cavendish, Blue Java, Sweetheart, and Gros Michel.
What it seems I actually have: Brazilian, Cavendish, Namwah, Dwarf Red, Gros Michel, Pisang Ceylon, Veinte Cohol and SH 3640, and American Goldfinger. FHIA 1, Paggi and FHIA 17... Always room for one more.