overwintering

Well, my tender perennial bed has filled out nicely, but August starts
tomorrow, so I am starting to think about September and how best to save
some of my tender plants for next year. I pot up and take in whole plants of
Purple Fountain Grass, Silver Squill (Ledebouria socialis), Abutilon,
Begonia, and Cordyline. I take cuttings of Persian Shield (Strobilanthes
dyerianus) and African Daisy (Osteospurmum). I will both dig tubers and
harvest seed of Marvel of Peru (Mirabilis jalapa).

But new to me this year are Acalypha, Plumbago, and Alternanthera dentata.
Does anyone here have experience with these plants? Would digging the whole
plant be advisable, or would cuttings be better? If whole plants, would an
attached garage (40-55 dF) with a single south window be sufficient or
should they be kept in the house, under lights? It gets a bit crowded around
that south garage window with the PFGrass.

Also, as to the Cordyline, I did once find info that said to, in the spring,
cut it back to near the soil line and start over. I just couldn't bring
myself to do that this year - too fearful I'd lose it altogether. Additional
new growth was nice, but I wonder if it might have been more splended with
regrowth instead. And I also wonder whether, if cut a bit higher, would I
have gotton more than one shoot. Any ideas on that?

Kitty

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