Eighty-five years ago the National Gardens Scheme was created and blighted gardens in the UK forever. And in this anniversary year we will be bored silly by the praises sung of it.Starting as a scheme to let everyone, even the hoi polloi, into posh gardens for a donation to charity, it now dominates the garden world, tainting all it touches. Somehow the belief has grown that the gardens under the scheme are great, quality gardens. The reality of their predominant mediocrity can never be confronted because, my dear, it’s all for good causes. Good gardens, awful gardens, nonexistent gardens such as Antony Woodward’s rather vacant plot on an inaccessible Welsh hillside — all may come to the party and be bathed in a rosy glow of goodwill and piety.