The team responded in the best way possible to going behind inside a minute and Harry led from the front with his first hat-trick of the campaign.
The striker levelled from the penalty spot on nine minutes after being upended by Artur Boruc and goals from Mousa Dembele and Erik Lamela saw us 3-1 up at half-time.
Harry put the issue beyond doubt by completing his treble – his third Spurs hat-trick – in the second half.
“Bournemouth started well but other than the first five minutes, it was one of the best performances we’ve had,” said the England hitman. “We played well, pressed high and created chances. Overall we’re delighted with the way we played, especially scoring the five goals. It was a good day for us.
“We haven’t lost in the Premier League since the opening day of the season, confidence is sky high, we’re playing well and even the draws we’ve had we could have won.
“We’re slowly climbing the table, we’re happy with where we are and we have to keep progressing and getting better.”
Clutching the matchball at the Vitality Stadium, Harry added: “As a striker you are going to go in and out of spells. I’ve not had a bit of luck that maybe I had last season and today was the day it changed with chances coming my way.
“As a striker you have to be patient. I feel I’ve been playing well, as a team we’re playing well and I’m delighted to get the three goals.”