According to Celebrity Mania, the PopCap title is one of her most played applications on the iPad.
"I play it almost as much as my kids," she said. "You choose from an arsenal of plants and battle against zombies with anything from pumpkins to mushrooms."
It was added that she enjoyed using art application Brushes by Steve Sprang.
First released on PC in 2009, Plants Vs Zombies has since been ported to Mac, iPhone, Xbox Live and PSN. It will launch on Nintendo DS this spring.
> Click here to read our iPhone review of Plants Vs Zombies