FRUITS FLOWERS and GREENS
It is a custom in many communities to adorn the Synagogue and home with
fruits, flowers and greens in honor of Shavuot.
Reasons for:
Fruits: In the time of the Beis HaMikdash (Holy Temple), may
it be rebuilt speedily, the first fruits were brought to the Beis Hamikdash,
beginning on Shavuos.
Flowers: Our Sages taught that although Mt. Sinai was situated
in a desert, in honor of the Torah the desert bloomed and sprouted flowers.
Greens: Our Sages taught that on Shavuot judgement is
rendered regarding trees in the field.