Historical hydroculture

It is uncertain if Sammu-ramat or Nebuchadnezzar II ordered them to be built between the 8th and 7th century BC Babylonia.

However, there is archeological evidence, uncovered by Robert Koldewey, that ancient structures exist to support the technology used for these gardens.

[2] A chinampa is a floating garden armada in a lake from the Xochimilco region, once Chinampan, of Mexico.

Ōhi'a Lehua, Metrosideros polymorpha, is a Hawaiian plant with roots that can grow suspended in extinct lava tubes.

The roots of this plant are able to penetrate deep into the volcanic rock, to reach these hollow tubes, where they can collect moisture.