These links may be helpful:
https://www.gardeningknowhow.c...
https://www.gardenguides.com/1...
I would be cautious about where you site nettle, as weeding it will be problematic. I can get stung through my thin garden gloves. They are a native plant in my region, and freely grow in my fields, usually at the edges of woodlots. My soil is acidic, and the nettles do grow best where the moisture level is fairly consistent. If conditions are good for them, they will quickly form a colony, and are quite striking when they bloom and when their seed pods ripen.