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There are so many things that resemble this, unfortunately. It looks to be in the Solanaceae family, which is quite broad. You can take samples to your local extension service, and they may be of service. This will help you to find the closest to you:

https://www.gardeningknowhow.com/extension-search

That is a species of Solanum. Likely a Horsenettle. This is probably Solanum carolinense.

https://www.gardeningknowhow.com/plant-problems/weeds/get-rid-of-horsenettle-weeds.htm

It may not be getting enough water. These trees need regular watering to keep the soil moist. Try adding a 2-inch layer of compost in the spring for the fertilizer. The shrub also performs best in frost free areas, so you may need to cover it when frost threatens.

https://www.gardeningknowhow.com/ornamental/shrubs/potato-bush/potato-bush-information.htm
https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=30927

A soil sample analysis may help determine what is missing.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm

You can try it, but it grows quickly; you may have to trim it often. Also, it is toxic so if you have pets or children, it may be a problem as a groundcover.

https://plants.ces.ncsu.edu/plants/solanum-laxum/