There are over 3,000 tulip cultivars ... Once they turn yellow and wilt, they no longer create energy but waste it. It's then safe to remove the dying foliage, leaving the stems, bulbs, and ...

Nothing says 'springtime' like an array of brightly-coloured tulips – but, sadly, these oh-so-popular blooms don't tend to stick around for long ... died back and gone yellow (about six weeks ...