evening stock Directory References Discover 9 of the World’s Deadliest Snakes What Is the Emoluments Clause? How Deadly Is Quicksand? Ten Days That Vanished: The Switch to the Gregorian Calendar Timeline of the 2000s Is Cinco de Mayo Mexico's Independence Day? Why Do Some Cicadas Appear Only Every 17 Years? Contents evening stock plant Ask the Chatbot a Question Ask the Chatbot a Question Also known as: Matthiola longipetala, night-scented stock Learn about this topic in these articles:stock In stockEvening, or night-scented, stock (M. longipetala) is a low and much-branched annual from southeastern Europe. It produces pink to purple intensely fragrant flowers that open only at night. Read More