Zakaah on grapes
Question

                Are grapes subject to zakaah?.
Praise be to Allah.
    Zakaah is due on grapes if they reach the nisaab, which is 
    five wasqs (i.e., 300 saa’s), because of the report narrated by al-Bukhaari 
    (1405) and Muslim (979) from Abu Sa’eed al-Khudri (may Allaah be pleased 
    with him), that the Messenger of Allaah  (peace and blessings of Allaah 
    be upon him) said: “There is no zakaah on anything less than five wasqs.” 

    Half of one-tenth of the grapes should be given if they were 
    irrigated at a cost, such as if they were irrigated by machines. But if they 
    were not irrigated at a cost, such as if they were irrigated by rainfall or 
    rivers, then the full one-tenth must be given. 

    Al-Nawawi said in al-Majmoo’ (5/440): Zakaah is not 
    due on dates and grapes unless their dry weight reaches the nisaab, which is 
    five wasqs. 

    The Scholars of the Standing Committee for Issuing Fatwas 
    said: If the grapes reach the nisaab, which is five wasqs, then zakaah is 
    due on them, so one half of one tenth should be given on grapes. If he sells 
    them he should pay one half of one tenth of their price. This applies if 
    they were irrigated at a cost, such as if they were irrigated by machines or 
    channels or sprinklers. But if they were not irrigated at a cost, such as if 
    they were irrigated by rainfall or rivers, then the full one-tenth must be 
    paid. End quote. 

    Fataawa al-Lajnah al-Daa’imah 
    (9/229) 

    And Allaah knows best.