This native perennial has delicate, hairy leaves and lovely petite, purple flowers that attract butterflies, not snakes. It’s amazingly drought-tough and requires little water after establishment. You may see it listed as full sun, where it does great, but it’s also very happy in shady spots, which can be trickier for many gardeners.
The flowers stay tucked into the leaf axils, so you may barely notice them, but butterflies definitely will.
Snake herb does spread a bit, making it great for areas in the garden that you may be leaving a little more natural.