The flowers are most fragrant in the evening and smell sweet with musk, lemon, and jasmine notes.
This tree won't produce fruit until hand-pollinated, but its citrus scent is delightful. "Citrofortunella mitis produces tiny white, star-shaped flowers with a sweet, orange blossom fragrance.
The scent of gardenia blooms has inspired countless perfumes and household scents. "Gardenias are notorious for being high maintenance both indoors and outdoors.
Most begonias aren't known for their fragrance, but there are are few varieties that have a light, sweet smell. A classic example is the tea rose.
Evergreen bay laurel smells savory rather than sweet. "Bay laurel (Laurus nobilis) has fragrant leaves that smell of balsam, herbs, and citrus, especially when rubbed or crushed.
Hoyas are white, pink, purple, and have different leaf forms. "Most species or varieties produce clusters of waxy, star-shaped flowers that may smell like chocolate, citrus or vanilla!
Hancock claims Vanilla Cream passionflowers have an aroma, unlike most. The honey-scented white blossoms grow year-round.
The habit is a little awkward—it's not quite a vine, but it's too lanky to be a well-behaved shrub unless you do a lot of pruning.