Spring is when new plants grow. It is a time of hope. Salt water and lemon juice, on the other hand, represent tears and the sourness of slavery. We dip a fresh vegetable into salt water or lemon juice to remind us of the tears of the slaves mixed with their hope for freedom.

ברך אתה יי אלהינו מלך העולם בורא פרי האדמה

Baruch atah Adonai, Eloheinu melech ha'olam, borei p'ri ha'adamah

Thank you, God, for the vegetables that grow in the ground.

haggadah Section: Karpas