Shannen Doherty joins Hallmark original

Holiday-themed telepic to debut in October 2010

Shannen Doherty has signed for a holiday-themed Hallmark Channel original movie.

The former "Beverly Hills, 90210" star has been cast in "Growing the Big One," which centers on a woman who inherits her debt-ridden family farm and enters a pumpkin-growing contest in hope of avoiding foreclosure. Along the way, she falls in love with her partner in the contest.

The movie has begun production in Vancouver and will premiere in October 2010.

"Growing" is produced by GBO Films, with Howard Meltzer ("The Brooke Ellison Story"), Jane Goldenring ("Pizza My Heart") and Ted Bauman ("Pictures of Hollis Woods") executive producing. Mark Griffiths ("Our House") is directing from a script by Diane Mettler and Anna Sandor.