Zone 7, 6ft high, multistem, loved by bees, grows every year anew by itself, fairly good ground competitor, didn't notice any fragrance.
Some of the leaves are lobed, majority not.
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It's most likely Tithonia rotundifolia (common name is Mexican sunflower). A great plant: tall, wide, floriferous and excellent for pollinators. I used to grow it (or the Torch cultivar) when I had larger gardens. Here are some photos:
That is a Sulphur Cosmos I believe.