Floral Haven Avenue of Flags Posted on May 14, 2018 /By Shawna Date: May 25, 2018Time: 24 HoursLocation: Floral Haven in Broken Arrow, Ok.More infoFamilies with raise flags for display through the weekend. Guests are welcome on the grounds 24 hours each day, and there will be a reenactment of The Tomb of the Unknown Soldier.