Kari - soap I made with a Monoi de Tahiti oil at 5% of my base oils is holding its scent 4 months later. I posted about it
here. According to Wikipedia the oil is made with a gardenia, but according to the Amazon product page it’s made with Frangipani. It may not smell exactly like the gardenia that grows in Virginia, but it’s similar. One caveat is that everyone I know can smell the scent except my stepmother (?!).
Link to product on Amazon:
Monoi De Tahiti Oil-100% Natural-4 oz
https://www.amazon.com/dp/B00EKNTR5W/ref=cm_sw_r_cp_tai_g9PuDbY72Y6Z1