YOUNG GARDENERS Children plant milkweed to attract Monarch butterflies during the 16th annual Renewal and Remembrance Volunteer Day of Service at Arlington National Cemetery, Arlington, Va., July 9, 2012. Monarch larvae feed exclusively on milkweed. The children joined hundreds of landscapers and lawn care professionals as volunteers for a day of service to help maintain the more than 600 acres of cemetery grounds. SHARE IMAGE: Download Image: Full Size (0.09 MB) Photo By: VIRIN: 207826-O-DOR32-835.jpg Photo Gallery