I have some really nice chrysanthemums that are not hardy would they overwi : Grows on You

London, United Kingdom

I have some really nice chrysanthemums that are not hardy would they overwinter in an unheated greenhouses?

Depends how cold the winter gets - good general advice in the link below, including how to overwinter the more tender types

https://www.rhs.org.uk/advice/profile?pid=813

1 Dec, 2015

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