Usually 10 discs for the Collector's Edition. Total Episodes: 12 (approximately 10.5 hours of content).
If you are looking for the physical DVD set, here are the standard technical details: When Calls the Heart Season 9 Complete Pack
Elizabeth returns from Hamilton; a new mayoral election begins. "Out Like a Lamb" Hope Valley elects its new mayor. "Turn the Page" Elizabeth’s book is finally published to mixed reviews. "Straight from the Heart" Lucas babysits Little Jack, showing a new side of himself. "Hope Valley Days" A two-part community festival brings the town together. "Rock, a Bye, Baby" The season finale features major news for Lee and Rosemary. Usually 10 discs for the Collector's Edition