Dude calm down,your home & safe,i wouldnt care if they had my dick print on the pots the plants are in,if your not there & they didnt catch you with the plants then forget about it.
Their not going to send your fingerprints to some crime lab over 3 plants like on CSI Miami, where they'll follow your scent through 10 rivers & over a mountian range or some goofy shit.
For all they know somebody stole a bunch of house plants off your back porch last week so thats why your prints are on the pots.