Plumeria: Plumeria rubra, (Frangipani)
Used in parfumery. Frangipani has a gardenia like scent, very fragrant yet delicate. in some traditions and cultures it is used in the making of incense like Nag Champa. For me I find the aroma of Frangipani soothing, comforting, it brings me peace, harmony and serenity. Some say it is a wonderful scent to use as a perfume or in incense to help in hospice care. It blends well with citrus notes, as well as sandalwood, jasmine, ylang ylang, champaca and much more. For sure one of favorite.

Gardenia: (Gardenia augusta/Gardenia jasminoides)

Use: Parfumery. I love the scent of gardenia. I have the privilege to own a gardenia plant and enjoy each day the beautiful fragrance of the delicate flowers. Gardenia is not easy to distill. It is almost impossible to find true gardenia absolute. Most gardenia absolutes and fragrances found online have most likely been adulterated and are not true gardenia. As a botanical perfume crafter I like the scent of plumeria also know as frangipani, with notes like gardenia. 
Energetic properties:
Gardenia (G. jasminoides)  can help with compassion and emotional shift due to accepting one’s consciousness in a new way. It helps with the integration of knowledge received in the recent past. It could be excellent to help with the relationship between students and teachers as it creates a sense of peace, caring, and compassion. Humm….can you imagine every classrooms with the wonderful energy and fragrance of a gardenia plant?