Cacti are easy houseplants to grow on a sunny windowsill, where other plants might struggle in the heat, and many provide a stunning display when they flower. A cactus only needs repotting when it outgrows its current container and, even then, only needs to move up one pot size.
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Kirstenbosch National Botanical Garden
Cape Town, South Africa
RHS Garden, Wisley
Woking, United Kingdom
Pamplemousses Botanical Garden
Pamplemousses, Mauritius
Shinjuku Gyoen National Garden
Tokyo, Japan
Singapore Botanic Gardens
Singapore
Butchart Gardens
British Columbia, Canada