What type of paint to use on rubber tires?

In this tire planter project, she used Behr exterior flat paint: https://www.hometalk.com/diy/outdoor/garden/tire-turned-planter-28694857

Painting Tire Planters | NLI - Natural Learning Initiative

https://naturalearning.org/painting-tire-planters/

https://www.youtube.com/watch?v=aiZebKebZY8

1. Wash the tires. So the paint adheres, thoroughly wash the tires with soap and water. ...
2. Prime the tires. Once the tires dry, prime them with a spray primer. ...
3. Choose a durable, non-toxic outdoor paint. ...
4. Choose light colors. ...

Help from Hometalkers--"I painted several tires in bright colors for outdoor planters. Before painting, I brushed them down with a mixture of dish soap and hot water, then hosed off the soapy water. Then I spray painted in bright colors with exterior spray paint, no priming. I have had them outside for 3 years and they are still bright and beautiful". https://www.hometalk.com/diy/paint/exteriors/q-painting-types-tires-23936708 ANOTHER--" I do a lot of tire yard art and I use spray paint. I would say that 90% of the time spray paint works. If you flip a tire inside out you have to clean it really well before using any paint. I have stuff that has been outside for years and the spray paint looks just like it did when I painted it. Good luck". https://www.hometalk.com/diy/paint/exteriors/q-want-to-paint-a-bunch-of-tires-what-is-the-best-paint-that-lasts-7200036

Thanks all, was hoping to use leftover house paint!