Return to the Hydroponics Forum | Post a Follow-Up

Used Coffee Grind

Posted by edurink Mla Phil (My Page) on
Mon, Jul 26, 04 at 20:25

I read in an article that used coffee grind is a good growing medium. Any one tried it before? What are your observations?

Follow-Up Postings:

RE: Used Coffee Grind

I think I would stick to a neutral medium like perlite. I read coffee grounds is high in nitrogen and is acidic. This may alter the levels of nutrients and the pH in your solution in ways that maybe difficult to predict. But this is a great hobby and there's no law that says you can't give it a try.

RE: Used Coffee Grind

  • Posted by Baci z10Ca (My Page) on
    Wed, Dec 29, 04 at 11:16

Hi edurink. I know some growers would not consider grounds hydroponic but I thought this was such a neat & inexpensive idea for a media. Hank is right about the nitrogen & acidity, but I just like experimenting. I have tried coffee grind as a seed starting media. If it is placed in a baggie, it will mold. It seems to crust on top & be too moist on the bottom if placed in a cup. Again, mold can occur. Tomato & apple seeds did germinate, but damp off because more aeration is needed. I am trying to mix it with different substances but I am still experimenting.

RE: Used Coffee Grind

*used* coffee grounds are not acidic. They are almost neutral pH.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Hydroponics Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here