And if flowers and herbs suddenly manifest in your neighborhood overnight would you be pleased or annoyed. These days we are often greeted with some ghastly new graffiti, but flowers? Lets see the effect:
Guerrilla gardener Richard Reynolds began what he terms guerilla gardening four years ago.
That was when he found himself with nowhere at all to garden. And digging up someone else's land is criminal damage.
[Richard Reynolds, Guerrilla gardener]:
''Where there's land that's neglected and there's a need for people to grow food or to grow flowers, people are going to take it over. It's common sense even if the law is not on their side.''
So Richard began to garden by stealth in neglected places and started blogging about his actions.
Lo and behold he soon had 4,000 people signed up to his website with active cells in major cities all around the world. Here Reynolds and his team transform these neglected areas into flourishing beds of lavender, Paris daisies and Pinks.
Kelly Jamieson who was out walking likes the idea.
[Kelly Jamieson, Local Resident]:
''It's nice to see some flowers."
And after several hours of effort the gardeners work comes to a fruitful end.
Residents wake to the radiant sight of blooming flowers.
[Jimmy Knock, Resident]:
''Very good, very good and it definitely sets the actual gardens off."