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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Singapore Botanic Gardens
Singapore
Vallarta Botanical Garden
Vallarta, Mexico
Rikugien Gardens
Tokyo, Japan
Medellin Botanical Garden
Medellin, Columbia
Royal Botanic Garden Sydney
Sydney, Australia
Lalbagh Botanical Garden
Bangalore, India