The lilac blue flowers at the base of the waterfall are Hypoestes aristata, next to the Bird of Paradise, Strelitzia regina.
Sword Agave – last seen in the Hotel gardens in Madeira…
The Glasshouse at RHS Wisley
https://www.rhs.org.uk/gardens/wisley
https://www.rhs.org.uk/gardens/wisley/Articles/Greenspiration-at-Wisley