While the tops of container plants may be quite hardy the roots are vulnerable to frost. Here are some easy steps you can take to protect them in cold weather.
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Butchart Gardens
British Columbia, Canada
RHS Harlow Carr
Harrogate, United Kingdom
Royal Botanic Garden Sydney
Sydney, Australia
Missouri Botanical Garden
St. Louis, Missouri, USA
Saint Petersburg Botanical Garden
Saint Petersburg, Russia
Monet's Garden, Giverny
Giverny, France