Quick Question - beginner

I got a tank with two ampularias (not sure if they are apple or mystery snails). I have some decor in my tank, they love to walk on the decor. But I wanted to get some live plants. However, they can be quite expensive where I'm from. I'm wondering if I could grab some plants from a garden store instead of fish stores, they are cheaper there and I might find the same plants (at least some under the same name).

Can I do this? What yall recommend me to do?