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South Yorkshire, United Kingdom Gb

my canna is approx 750mm tall and is in a 900mm diameter 800mm high each ,I live in an exposed area of sheffield.Would both my plants overwinter in an unheated greenhouse



In theory, no, but I left mine in a cold garage last winter in their pots, and they grew again this year, even though the winter was so bad.

3 Sep, 2010

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