14. Chocolate Cosmos
If you’ve ever wanted your garden to smell like dessert, chocolate cosmos is your answer. This deep maroon, almost black flower emits a delicious scent that smells just like dark chocolate or cocoa powder. Native to Mexico, chocolate cosmos is technically a tender perennial, meaning it can be grown year-round in warm climates but should be dug up and overwintered indoors in colder zones. It prefers full sun, moderate water, and rich, well-draining soil. The blooms sit on long stems above lacy foliage, making them great for cutting gardens or containers. While they’re not as bold as some other flowers in terms of size, their dark hue and scent make them unforgettable. The chocolate scent is strongest in the heat of the afternoon, adding a surprising olfactory twist to your summer garden lineup.