Topsy Turvy Topiary

In the infinite chessboard in Wonderland, you are employed as a head gardener of a 7x7 garden. Even though you are technically at war with some of your neighbors, it is your job to ensure that the hedges and flowerbeds all look color-coordinated. You work for the red queen, and your neighbors work for the white king. To avoid direct communication, you slip each other notes with your cryptic plans over the hedges, when no one is looking. Today, your neighbors have an extra-special pattern in mind, but what could it be?
18=1, 15=2, 25=3, 7=4, 2=5, 9=6, 22=7