Hello! I am also a team member of this application. Thanks for helping out with our concerns so far.
In the application we’re making, the approximate error while getting GPS location varies from 20 meters to around 5 meters at a time, and that error is printed on the user’s input dynamically so even if we do stand exactly by the base of the plant, we might be off by 5 meters, and the user will know of it. And since we’re giving them the allowance to re-place the pinned GPS coordinate, we are allowing the users to provide the most accurate location result.