This is one of the projects we worked on today and I was surprised at how quickly it went. I went to Home Depot (since it was the kid's free workshop day) and bought these gray edging pieces. They are somewhere between $1.33-$1.43 each, depending on whether you want the curved ones or the straight ones. I bought 12 thinking that would be enough and actually had 2 left over, but if we had tweaked the circle a little, we could have made it bigger and used all of them. I bought 2 bags of soil, one was a gardening mix that was less than $4 and one was a topsoil that was less than $2. The flowers are purple Petunia's that were just beautiful and vibrant and I got a flat of 18 of them for $11. So, for somewhere around $30-$35, I put in this planter and planted the flowers and it looks so much better than it did before. I took the 2 bags of soil and put one on one side of the circle and the other on the other side and then mixed them before I planted them. I put the edging stones around first and then filled with the soil and planted, then watered. They are so pretty and it really took no time at all.
So, do something to spruce up your environment! Add a planter or a edge row and put in some color. Just be sure to buy a flower that can take whatever kind of sun you get there. This part gets full sun for us because the tree is still young but a bigger tree would offer more shade and you could go with a partial shade flower.
Make your world beautiful!