NBA player Patrick Beverley is well-known for his unwavering work ethic and skill on defense. Beverley had to work hard to get into the NBA after moving to the US as a teenager after growing up in England. He demonstrated tenacity and resolve throughout his career.
Beverley's attitude of going above and beyond to ensure his team's victory is reflected in the quote you cited. This refers to basketball players' willingness to perform the difficult, occasionally unappreciated tasks that help the team win games. Beverley believes in giving it your all, whether that means diving into the stands for a loose ball, taking charges (which can be painful), or guarding the opponent's best player.
This way of thinking is comparable to a gardener who carefully cares for each plant and does whatever it takes to support its growth, even if it involves getting dirty or enduring unpleasant chores. Patrick Beverley views his role as that of a team player who helps others by performing the hard work required for success, much like the committed gardener.
He has gained the respect of both teammates and opponents as a result of this attitude, demonstrating the critical roles that dedication and selflessness can play in accomplishing group objectives.