Colonial Bouquet is a round bouquet of flowers, no noticeable extension of flowers or foliage coming out of bouquet.  These are somewhat larger than the English nosegay bouquets.

You will find this bouquet to be one of the easiest to make.

Start your bouquet by soaking wedding holder in water.  Cut stems from roses and line around handle as in picture.  You might want to tape the handle in order to disguise handle easier.
  

Set your bouquet holder into a tall vase and begin adding roses, starting in the middle.  You will want to use floral glue as you insert each rose.  
  
Keep roses at one height.  You will want a round look when finished.