By Hintonwood
United Kingdom 
does platycodon survive being outdoors in the winter?
8 Sep, 2011
Answers
A few stakes with a label--useful later with the tall kinds--or a few white rocks around the clump.
10 Sep, 2011
Yes - its a hardy perennial, but be warned - mark the spot where it is, it disappears without trace over winter and doesn't leaf up till quite late (sometimes as late as June or July), so you forget its there.
8 Sep, 2011