The rain soaks down through them into the ground.

And they keep the sun from drawing it back again.

Besides, they keep down weeds in fields where we don't want weeds.

See!" she ended, pointing to a new grove they were approaching.
Gavin noted that here the orange tree rows were alternated with rows of strawberry plants.
"That was an idea of Milo's, too," she explained.

"It's 'intercrop' farming.