Q. Thank you so much Rabbi for your prompt answer. I would also like to know if I can still make the brocho for the tree blossoms, as it is not Nissan anymore.

A. Nitey Gavriel (Pesach 3, ch. 46) quotes a number of Poiskim that permit reciting Birchas Hoilonois, for first tree bloomings seen during the month of Iyar, (Mishmeres Sholom recited the brocho on Lag Baomer itself), Sivan or before Nissan on Adar (Birur Halocho 226 – Shaarei Yemei Pesach ch.2). Nevertheless, one should say it as soon as feasible.

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit”a