Help with Jubilee planters

Hi all

Wonder if anyone can help.

I need to "create" two planters for my childrens school display in a jubilee theme preferably red, white and blue. I know very little about plants ie what will still be flowering by June and what plants will flower in blue.

Any advise will be gratefully recieved
Thanks

 

My local garden centre is selling trays of plants "mixed" in Red, White and Blue. Verbena I think, but probably also others. I'm growing Red, White and Blue "Surfina" (sp?) Petunias, which will make a good show. Make sure you get some decent sized plants (not plug plants) otherwise they won't be in full glory until after the children break up for the Summer !!