Weeds grow at London's Chelsea Flower Show

Nettles, dandelions, brambles: weeds—once considered a scourge—are taking pride of place at London's Chelsea Flower Show as gardeners concern themselves more than ever with biodiversity and sustainable development.

Alien plantscapes make it hard to know what country you're in

Around the globe, natural habitats are being overrun by plant species originating from different regions. A study published today in Global Change Biology reveals that the growing prevalence of exotic plants in our gardens ...

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