alking to your plants is supposed to be good for them. But if you really want the best blooms, you should blast them with heavy metal music. That’s the unlikely finding of a study by horticultural students who tested the effects of music on plants.TV gardener Chris Beardshaw tells told Radio 4's Gardeners’ Question Time that a constant diet of Black Sabbath worked wonders – but plants exposed to Cliff Richard songs all died. Panellist Beardshaw, who has also been a familiar face on BBC2’s Gardener’s World over the years, said using rock music as a nutrient appeared to create larger flowers. And 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 based on the effects of music on plants. He said: ‘We had one greenhouse that was silent and we had one that was played classical music, one that was played Cliff Richard and one that was played Black Sabbath. O