HomeGrown sends some sunshine and nighttime fragrance your way this week with a look the long and storied history of the sunflower, and night-blooming plants for your garden. Joe Pappalardo, who wrote “Sunflowers: The Secret History” talks about the evolution of the plant from an 8,000 B.C. food source to a trip on a NASA rocket. Author Peter Loewer has tips on the best plants for fragrance in your garden as the sun goes down – and beyond. Downloadable MP3Find out more: