Kedushat Shevi’it and Shehechiyanu
Question
According to Halacha, should you say shecheyanu before eating Kedushat Shevi’it the first time in a Shemitta cycle, or no? I ask because there is a concept of reciting Shecheyanu before rare mitzvot, such as Lulav and shofar. However, I don’t know if Kedushat Shevi’it is the same in this regard, as there is a while it can be eaten.