Right after you get the Smurfosprint upgrade you are introduced to a training course where you have to sprint over plants to extend your sprint. It is on the right side of Handy Smurf. The course goes over a bridge , to the left around the back of the mushroom house. Take this complete course by holding
and go over every plant. Keep sprinting after the last one until your tank is depleted , that should be just enough to give you the achievement right away. As a bonus for completing the sprint course with all the plants you also get a present box collectible.
If you missed this course after getting the Smurfosprint , you can always go back to Handy Smurf’s upgrade point in the Village and look for it on the right. However , if you have completed the course and collected the present , the plants to extend your sprint are gone.
I have no idea if this is cumulative as I got it immediately after getting the upgrade. But if it is not , this is the place where you can get it first. If you missed it here you can look for other courses with the Smurfosprint extending plants , scattered around the world.