Lily of the Valley:
Known for its sweet-scented white blossoms, it adds fragrance and an interesting silhouette to arrangements. It's toxic to animals and people and grows best in hardiness zones 3-9. It should be planted in early spring in partial shade.
Hyacinth:
This flower has a strong scent that often precedes its appearance. Bulbs need to be planted in fall in well-drained, fertile soil and can grow in full sun or partial shade. It blooms in the spring in shades of pink, purple.
Rose:
Renowned for its fragrance, roses come in numerous varieties, including highly aromatic English roses like Heritage and Gertrude Jekyll, as well as hybrid teas like Just Joey and Mister Lincoln.
Lavender:
Known for its soothing scent and stress-reducing properties, lavender is easy to grow even in pots. French lavender (Lavandin) is particularly fragrant.
Gardenia:
This flower releases more scent at night to attract moths. It prefers warm nighttime temperatures (around 60°F), moist soil, and humidity.
Freesia:
Freesia offers a light, sweet scent akin to strawberries. It blooms in vibrant shades of purple, yellow, pink, and red. In zones 9-10, plant corms in the fall; in cooler zones, plant them in the spring
Jasmine:
Known for its sweet scent, especially at night, white jasmine is the most fragrant variety. Indoors, it needs six or more hours of bright, indirect light.
Magnolia:
With a sweet aroma, magnolia trees thrive in sunny, humid conditions typical of the Deep South. The Daybreak variety, with rosy-pink flowers, is particularly fragrant. Magnolia flowers are long-lasting cut flowers and bloom throughout the summer.