looks like perilla to me.

I think it's perilla too. Squeeze the leaves and take a whiff. If is smells minty & medicinally, it's perilla.
I have a purple form. Perilla is edible.
{{gwi:434575}}

Thanks for all the replies!! But, it doesn't smell minty or medicinally. I don't think perilla grows here in the northwest. It really doesn't have have any smell when I crush the leaf.
I think I figured it out. It has a square stem so I pretty sure it's a salvia. I have grown Yvonne's before and a few seeds may have been left in the potting soil because I reuse my potting soil sometimes. I didn't intentially plant them though.

It might be salvia as you said.
Perilla & Salvia are in the mint family. All of them have square stems.