If you do choose to plant a tree with the Jewish National Fund, this is the verse that relates to tree-planting and even comes on some of the tree certificates:
When you shall come to the land you shall plant trees. - Leviticus 19:23
That's not quite how my NASB reads, but I'm going to trust the Jewish translation on this one. It seems this verse applies to people who are actually going to the land. So some of us are going this summer, and hopefully all of us will go up someday. . .