I'd be happy if mine would just grow taller. Here's the starts @Turtulas-Len gave me a couple years ago (the picture is from right this moment):
The fence boards are about 5.5 inches wide, so this two year old start is a little over a foot tall:
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This one is doing a bit better, a little over 2' tall:
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Just when they start to take off it gets to be Autumn and cold weather and they die back.
Yes, ours used to look like that. Every year, larger and larger and larger.