How often do we need to fertilise our plants?

Dear All experts,

May I ask how often do we need to fertilise our plants and when do we know we need to do it?

Thanks!
;)

Quote:

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Originally Posted by w33dman27

Add the dosage to every watering.

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What do you mean & how do you measure the dosage cos I am currently using organic fertilizer.

Thanks!

:D