Guerrilla Gardening Takes Britain By Storm

In February, the National Trust, a preservation group, pledged to create 1,000 plots over the next three years, many of them on the grounds of stately homes, including Gibside, the ancestral estate of the queen mother's family.

"It's like gardening in the world's grandest garden," said Mark Heath, a 32-year-old volunteer who tends pumpkins and other vegetables at Gibside.