i wanna move my plants to my friends yard

they would definitely get more sun in his yard. the problem is he does not want his neighbors to see them. we can't go building a greenhouse... then they would know somethins up cause hes never had a garden. what are some ways to obscure the view of the plants and still get optimum sunlight ¿?

Put em in the weeds, or in the middle of some bushes?

staple them to the ground.