We couldn't really afford to go out and buy plants but we had enough friendly neighbors, friends and co-workers that we got many donated plants. What we did spend money on was bricks to line the old planters. We got both red and tan bricks for both planters.
When we got them home we found that we had 72 tan and 24 red, 96 total. It just so happens that there are exactly 25 prime numbers between 0 and 96. So all of the red bricks are prime numbers in succession from 1-96. We were one short so we used one of our Butler Bricks.
Much better even if it hides the math.