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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Koishikawa Korakuen Gardens
Tokyo, Japan
Medellin Botanical Garden
Medellin, Columbia
Kenrokuen Garden
Kanazawa, Ishikawa, Japan
Gardens of Versailles
Versailles, France
Kirstenbosch National Botanical Garden
Cape Town, South Africa
Powerscourt Gardens
Enniskerry, Co. Wicklow, Ireland