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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Royal Botanic Gardens Victoria
Melbourne, Australia
Vallarta Botanical Garden
Vallarta, Mexico
Pamplemousses Botanical Garden
Pamplemousses, Mauritius
RHS Harlow Carr
Harrogate, United Kingdom
Powerscourt Gardens
Enniskerry, Co. Wicklow, Ireland
Villa d'Este Gardens
Tivoli, Italy