On Tu Bishvat we daven for a good esrog [there are deep kabbalistic reasons for this]. Some EAT an Esrog. Question: Does one make a she-hecheeyanu before eating the esrog??
Why not?
Why yes???
[Why does a Jew always answer a question with another question?? I don't know - why?]
I will leave it up to the Bnei Torah, korei ha-blog ha-zeh, to research the topic and share there conclusions.