Flowers in the first year with blooms of more than 1ft across number of flowers doubles year on year amazing colour45changing blooms blend from white to pink or blue and on to green hydrangea 39avant gardeampreg39 will be in full bloom for over 2 months and believe it or not the flower heads actually grow in size and change colour with each week that passes watch and admire as the clusters of blooms blend from white to either pink or blue 40depending on the ph of your soil