Look at specific dates?

March 12th  (Plum Blossom and Daffodils)
March 26th  (Vibernum and First Shoots)
April 5th (Snow in April!)
April 16th (Tulips and Aubretia)
May 1st (Bluebells and Cherry Blossom)
May 10th (Wisteria and Apple Blossom)
May 15th (Laburnum, Clematis and Irises)
May 19th (Hawthorn, Lilac and Broom)
June 2nd (Roses, Balle di Neve and Rhododendron)
June 9th (Delphiniums and Lupins)
June 17th (Roses and Water Lilies)
June 24th (Fuschia,Campanula,Roses and Day Lillies)
July 8th (Hydrangea,Astilbe,Petunias,Roses)
July 17th (Geraniums,Peonies, Astilbe)
July 28th(Phlox and Michaelmas Daisies)
August 13th (Phlox,Day Lillies and Rosehips)
September 1st (Nuts, Berries and Rudbeckia)