Outsidepride Papaver Danish Flag Poppy Seed - 10000 Seeds Danish Flag flowers are one of the most popular poppies in the flower market. These annual flowers will grow in USDA Zones 3 - 9 reaching 24 - 36 inches in height. Papaver somniferum is known as Danish Flag Poppy, and it is a favorite red and white annual that has feathery edges and a resemblance to Denmarks national flag. These poppies look especially impressive when planted in mass groupings. Sometimes they are also known as Breadseed Poppy or Florist Poppy, Sow 5 - 6 of these flower seeds in your garden, beds, containers or wherever you want a beautiful display.