3-Spring in consequence

I went to the same tree for the spring of 3 consequence years, 2011, 2012 and 2013. The tree is in Parco del Valentino, Torino. For the first time, I came to the tree without purpose, but for the two following years, I always came to check; as the tree has really beautiful flower.

The first photo was taken on the 31st March 2011,
The second photo was taken on the 24th March 2012,
And the last one was taken on the 11th of April 2013; as in 2013 the winter extended longer than normal.