Chris Beardshaw, an award-winning gardener and television show host, says that playing heavy metal music to plants helps them grow. Specifically, he suggests playing a lot of Black Sabbath:
Beardshaw, a familiar face on BBC2's Gardener's World over the years, said using rock music as a nutrient appeared to create larger flowers. Although the plants themselves were shorter, they were more disease-resistant.
The test came about because one of his horticultural students wanted to write a dissertation on the effects of music on plants.
"We set up four glasshouses with different sorts of music in to see what happened to the plants," Beardshaw said.
"We had one that was silent - that was a control house - and we had one that was played classical music, we had one that was played Cliff Richard and we had one that was played Black Sabbath.
"And the ones with Black Sabbath - great big, thumping noise, rowdy music - they were the shortest, but they had the best flowers and the best resistance to pest and disease.