A San Francisco art gallery owner was caught on video spraying a homeless woman with a garden hose on the street in front of his storefront because she would not move down the street — and she was later hospitalized.

In an interview Tuesday with The Chronicle, Collier Gwin — the owner of Foster Gwin Gallery on Montgomery Street in the posh Jackson Square neighborhood — acknowledged spraying a homeless woman with water after an encounter in which, he said, she turned over garbage cans outside his gallery and refused to move.

“I said you have to move; I cannot clean the street; move down,” said Gwin, describing the confrontation late Monday morning with a woman he later identified as “Cora.” “She starts screaming belligerent things, spitting, yelling at me…. At that point she was so out of control…. I spray her with the hose and say move, move. I will help you.”