The longest flower box measures 1,218.23 m (3,996 ft 9.72 in) long and joins the villages of Unterretzbach and Mitterretzbach (both Austria). It was measured in Unterretzbach, Austria, on 28 July 2010.

The flower box lines the street “Landesstrasse 1027” from Unterretzbach to Mitterretzbach (district of Hollabrunn, federal state of Lower Austria, Republic of Austria).