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Even without its fabulous scent, heliotrope would be widely grown in the garden. It has a distinctive scent -- some say it smells like cherry pie; others say a grape Popsicle. Still others say it's reminiscent of vanilla. Regardless, it is undeniably one of the most intriguingly scented plants in the garden. As a bonus, this tropical plant, grown as an annual, bears big clusters of rich purple, blue, or white flowers.
Heliotrope thrives in a spot with full sun and moist, well-drained soil. It's a great container plant -- try it in a window box or next to a doorway where you can enjoy it frequently. For the strongest scent, group several plants together where they can get afternoon sun. That warming sun releases the fragrance.