The best thing about Alan's 'secret ingredient is, it's free (Image: Getty) Alan Titchmarsh as identified a “magic” ingredient that helps plants grow “more rapidly than anything else” – and it's free. As part of a series of tips on how to water your garden – and when not to water – Alan has said that rainwater has a “magic ingredient” that simply isn’t present in the water we get from the mains. As a result, he says one of the most vital piece of equipment any gardener could buy is a water butt.
On the Gardener’s World podcast, he explained: “The funny thing is, there’s something about rain. “It’s got some sort of magic ingredient and plants always seem to grow more rapidly from rainwater, from water that comes out of the hosepipe. function loadOvpScript(){let el=document.
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