Hi-tech gardens bloom at London’s Chelsea Flower Show

3D printed soil, urban farming and artificial intelligence will all make an appearance at this year's event

Weed is not a word often associated with the immaculate gardens of the Chelsea flower show. But with hydroponics and urban farming making grand appearances at this year's event, it will be on a lot of visitors' lips.

"With the right lights you can grow whatever you like, even if you're inside a dark, north-facing flat in London or Birmingham," said Jody Lidgard, one of Chelsea's most decorated designers. "It's almost like marijuana," he chuckled. "It's funny, but it's true. They've been leading the way."

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