Ancient Hydroponics: 3,000 Years of Soilless Growing

Hydroponics (Greek: hydro water, ponos labor) isn't modern. Egyptian records (1460 BCE) describe water cultivation. The Hanging Gardens of Babylon (600 BCE)—one of the Seven Wonders—used vaulted water delivery to asphalt-bedded fruit trees.

Marco Polo (13th century) documented Chinese "floating gardens." Aztecs built chinampas—artificial islands from lake mud, held by roots, incredibly productive—on Lake Texcoco (modern Mexico City). Necessity drove innovation: arable land was scarce.

Modern science began with Bacon (1627) theorizing soilless culture. Sachs and Knop (1860s) perfected nutrient solutions. Today's hydroponics stands on ancient shoulders.