<p>How are birds linked to house prices?<br>How can a gardener improve the<br>flavour of their vegetables?<br>Do wildflowers really thrive in poor soil?<br><br>In this collection of articles from The Telegraph, biologist and gardening columnist Ken Thompson takes a scientific look at some of the greater ? and lesser ? questions faced by gardeners everywhere in a bid to sort the genuine wisdom from the hokum.<br><br>What is the ideal temperature f...