The artist, who migrated to New Zealand from war-torn Holland, called each stack of five brightly coloured spinning cubes an urban tree, and the three together an Urban Forest.
The work, chronologically the fourth in the Meridian Energy Wind Sculpture Walk, is the result of a two-year collaboration between the artist and Hutt Valley engineer Allan Brown, who overcame the challenge of enabling cubes on a pole to spin in response to the wind.