According to the Manatee County sheriff's report, 37-year-old Thomas Edward Lackie was arrested and charged with felony assault last week.
Authorities say he threw the 3-foot Christmas tree at his father but missed. They say he then tried to use its steel base to strike him. His father and mother subdued him.
The Sarasota Herald-Tribune reports that he denied trying to strike his father.
Authorities didn't immediately return a call by The Associated Press seeking information on the incident and whether Lackie has a lawyer.