No Sun, No Soil, And Robot Farmers: Is This Tomorrow’s Food Crop?

By Megan Backhouse

July 2, 2021

Even by the unconventional standards of modern-day urban agriculture, Geert Hendrix’s set-up is unorthodox. It is in an Alphington warehouse, with no windows and no soil, and is filled with the most diminutive of crops.

Tiny purple radish stems, miniscule basil leaves and microscopic watercress seedlings are the heavy hitters here. Their stems strain towards LED lights and their roots stretch down through hemp fibre and coconut coir into fish-tanks.

Geert Hendrix with one of his indoor growing systems. CREDIT: JUSTIN MCMANUS

Other leafy greens are growing on illuminated shelves that have nutrient-rich water recirculating inside them. Lettuces are being cultivated – in a sealed glass cabinet – on nothing but air and a regular misting of another nutrient solution. Other plants are tended by robot.

Freewheeling, this place is not. Space is carefully allocated, lighting is monitored and close tabs are kept on waste. Nothing is left to chance. Hendrix, part of a growing band of people working to make food production more sustainable and reliable, is using his indoor farm at the Melbourne Innovation Centre to help turn traditional methods of food production on their head.

He says the range of growing systems – some of which are at more experimental stages than others – is predominantly aimed at showing high-school students what is possible.

Purple radishes growing in trays of hemp fibre atop a fish tank. CREDIT: JUSTIN MCMANUS

As anyone growing vegetables as microgreens in trays of soil in a sunny spot in their kitchen will tell you, growing baby plants doesn’t have to be high-tech. You need to be rigorous with your twice-daily rinsing, but then, in little more than a week, you will invariably have a good yield of aromatic, nutritionally dense miniature greens at the ready.

Hendrix says it’s the very ease and speed of growing microgreens that makes them such a powerful educational tool. “I see them as a gateway to help people become full-spectrum farmers in the future.” He expects that, over the next 10 years, big shifts in agricultural processes will create new opportunities for farming, and he wants to inspire young people to take advantage of them.

Lead photo: Lettuces growing in a sealed glass cabinet. CREDIT: JUSTIN MCMANUS