The Curse of the Ghost — Marie O'Regan

Lily is about to move into her dream house; marred only by the overgrown garden that has invaded her dreams in recent weeks, and what she fears is hidden within it. Her obsession grows, and when her husband finally confronts her fears by digging up the garden in an attempt to set her mind at rest, the source of its power is revealed. And he's only made it stronger. The third in a series of six novelettes reviving the golden age of the monster from Hersham Horror Books.