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Used mostly by architects and architecture students to stimulate light conditions within and around buildings, they would surely please the princes' landscape-architects-in-residence already having fun at the wind tunnels.
And this time, they'll be pruning away — yup, you guessed it — phantasmagorical phototropismic bansais, using imitation latitudes, the artificial passages of days into nights, and simulant seasons as their pruning tools. In due time, there will be a grove set to the Tropic of Cancer or the Tropic of Capricorn. Or set to perpetual twilight. Or impossible solar progressions to create helical, torqued or similar deformations.
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Reviewing the checklist:
Aeoliotropism. Check.
Phototropism. Check.
Gravitropism. In progress.
Hydrotropism. Queued.
We could, come to think of it, form a limited liability company from which to coordinate our Dubai landscape enterprises: Earth Wind Rain & Fire LLC?
Unnatural Cultivation by Natural Means.
Heliodons @ Wikipedia
Wind Tunnel QTVR