may i ask what you're planning to do with the bare strip of land next to the planted saplings? since it's two squares of space, i probably would've filled both spaces with trees but alternate them. and in the spaces left blank, i'd put in some bushes and flowers.
o = blank space, x = trees
xo
oo
ox
oo
xo
something like that. if you had something else in mind, then ignore me! but i agree that it'll look better once the greenery grows it