Spearmint is easy to grow and share when it starts growing too much! I have read that the leaves keep away mice and it has great health benefits. I’ve used that, bay leaf, mugwort and also marigold and rose in spells. Some other witchy/medicinal herbs I have purchased dried (for burning, mostly)- hyssop, calendula, yarrow, angelica, lemon balm, feverfew, vervain/verbena. I have some dried rue and there are rue spells but I believe it’s considered toxic (esp. for pregnant women) and some of these others are also toxic to cats and dogs so that is something to consider/research. I’m experimenting with them (burning only or tiny amount in a bath, not ingesting). but I think I could likely subsitute a safer and more available herb (like rosemary, right, it does it all LOL) and it would be just fine. I saw a starter herb kit by Valley Seed on Amazon that had a lot of the less common ones (hyssop, yarrow, angelica, etc.) in a set of 18 herbs.