Diluted Coffee As Organic Fertilizer

[NewToTHC]

Hello:

Has anyone used diluted coffee as a supplemental fertilizer source in a organic grow. Since coffee tends to be acidic would it not be a great way to lower the ph of your water if needed when watering, while at the same time supplying some nitrogen and trace minerals, especially during the veg stage.

 

[Pbass]

I think I read a while back that it has as a ph reducer a negligible effect. And now that I think of it more, I'm quite sure I tried this and confirmed that theory. White vinegar for the win!

 

[NewToTHC]

Correct, from I have read, coffee grounds have a negligible effect on pH, but coffee itself does...supposedly. More interested in the benefit as a fertilizer source, with the side benefit of lowering pH in the watering solution if needed.

Use Diluted Coffee to Fertilize Plants

 

[SmokingWings]

One thing I read was that the grounds have a drop in their acidity levels once they have been used to brew.

I think they retain their Nitrogen levels or amounts.

 

[Blew Hiller]

Has anyone used diluted coffee as a supplemental fertilizer source in a organic grow. Since coffee tends to be acidic would it not be a great way to lower the ph of your water if needed when watering, while at the same time supplying some nitrogen and trace minerals, especially during the veg stage.

Most studies focus on coffee grounds rather than actual coffee...and while high in C/N ratio (20:1), coffee grounds are not a fertilizer...they are, however, an excellent component to add to your compost to keep the N (and temps) high.