This is from the FAQ on the company website:
Where is your stevia powder grown & harvested?
Like 99% of stevia available, our stevia is grown in China. We have many trusted agencies, from different countries, that make sure quality standards are being met to uphold our certifications that enable us to boldly state: USDA Organic & Non-GMO. Stevia Select is known for it's high standards.
I just bought this today at Walmart:

I'll be planting these tomorrow!