Q.What shrub is this
It has a greenish-reddish purple color and is in a yard on the highway. It’s about 6-7 feet high.
If you can upload an image, that would make identification easier.
Can you be any more specific to the leaf shape and zone that you are in?
Here are some links with just a few of the possible plants it could be!
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm
https://www.gardeningknowhow.com/ornamental/trees/sand-cherry/pruning-plum-leaf-sand-cherry.htm
https://www.gardeningknowhow.com/ornamental/shrubs/barberry/barberry-shrub-care-tips.htm
https://www.gardeningknowhow.com/ornamental/trees/smoke-tree/growing-smoke-trees.htm