No matter how fastidious you are with your plants, there will be a residue of pests and/or diseases in your pots at the end of the season. Many of these come equipped with protective mechanisms that allow them to survive the winter and rise to infect your plants next year. Cleaning everything ready to make a fresh start in spring is time-consuming, but worth the effort.
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Butchart Gardens
British Columbia, Canada
Dubai Miracle Garden
Dubai, United Arab Emirates
Pukekura Park
New Plymouth, New Zealand
The New York Botanical Garden
New York, United States
Royal Botanic Gardens, Kew
Richmond, United Kingdom
Royal Botanic Garden Sydney
Sydney, Australia