[3] In August 2020, in the third round of matches in the 2020 Bob Willis Trophy, Garton took his maiden five-wicket haul in first-class cricket.
On 25 August 2021, Garton was included in the Royal Challengers Bangalore squad for the second phase of the 2021 Indian Premier League (IPL) in the UAE.
[9] In November 2023 Garton joined Warwickshire, having previously worked under Bears first-team coach Mark Robinson at Sussex.
In November 2017, Garton was added to England's Test squad for the 2017–18 Ashes series as cover for Jake Ball.
[10] In June 2021, Garton was named in England's One Day International (ODI) squad for their series against Sri Lanka.