I'd try cutting it back, feeding it lightly, and putting it in a sunny window. If you just had frost but not a hard freeze, I bet it'll pop back.

Now, can you help me with the abutilon I left out when we had a low of 3 degrees fahrenheit? ;)

The plant may drop all of it's leaves (and any that look like they are going to mush should be removed) But in that sunny window for a about 3 weeks and you should see new growth buds forming where the leaves use to be and it should come back thicker then befor.

DON"T GIVE UP ! :)

cerwin