Those wishing to enjoy what might be a once-in-a-lifetime chance to see flowers such as the lady’s slipper orchid should probably start planning now.

The lady’s slipper orchid, or Cypripedium calceolus, is often referred to as Britain's rarest flower.
Those wishing to enjoy what might be a once-in-a-lifetime chance to see flowers such as the lady’s slipper orchid should probably start planning now.