Begonia tubers survive minimum temperatures of 40 degrees Fahrenheit and are winter-hardy in USDA plant hardiness zones 8, 9 and 10. They require winter storage at temperatures of 40 to 50 degrees Fahrenheit in climates with prolonged freezing spells. They are replanted outside once spring temperatures of 65 to 68 degrees Fahrenheit appear.
About the Author
Karen Carter spent three years as a technology specialist in the public school system and her writing has appeared in the "Willapa Harbor Herald" and the "Rogue College Byline." She has an Associate of Arts from Rogue Community College with a certificate in computer information systems.