Making planters from old tires is a good way to recycle tires while adding landscaping features to your garden. You can use car or truck tires, but should use tires with a soft sidewall to make this project easier to do. You will need some strength to work with the rubber.
Making the Petals
Lay the tire on its side on the ground. Put the cup on the center of the top edge of the tire between the hole and the tread. Trace a circle around the cup with the chalk. Move the cup to the right. Center the cup again so that there is a slight gap between the circle and the cup. Trace around the cup again with the chalk. Repeat this process around the entire circumference of the tire sidewall.
Look for the scalloped edge around the inner portion of the sidewall next to the hole. Locate the chalk line from one of the circles within the scalloped edge.
Use the utility knife to cut along the scalloped edge next to the tire hole. Start with the knife tip at the scalloped chalk line. Cut using a back and forth motion until the tip enters the rubber. Keep cutting slowly around the scalloped edge until you have a semi-circle cut. Peel up the rubber as you cut. This should give you the beginning of the "petal" for the flower design of the tire planter. Cut each outline using the same procedure.
Remove the inner rubber cutouts and discard them. Cut between each petal straight back to the metal belt of the tire. Pull the petals back as you cut to get them loose enough to work with.
Inverting the Tire
Press one knee into the tread of the tire while pulling the petals directly in front of you back toward you.
Push in the tread wall as you are pulling the petals. Continue this process You should notice that the tread is pushing in, slowly inverting the tire as you go. Work slowly around the remaining sidewall.
Stand on the outside of the planter. Place your foot on the tread. Grab two petals. Stomp on the tread while pulling the petals to finish inverting the tire.
Finishing the Planter
Set the tire planter on top of a metal rim. This will create the stem of the flower. Paint the rim green with the spray paint.
Put the garbage bag inside the planter so that it covers the hole. Place a 1-inch layer of gravel across the bottom of the entire planter, over the garbage bag. This becomes the drainage and keeps the soil in the planter.
Spray paint the planter a bright color.
Put the potting soil into the planter. Fill the planter completely to the top.
About this Author
Jack S. Waverly is a Pennsylvania-based freelance writer who has written hundreds of articles relating to business, finance, travel, history and health. His current focus is on pets, gardens, personal finance and business management. Waverly has been writing online content professionally since 2007 for various providers and websites.