How and when to use potash and coffee grounds?

jteether

Active Member

• Jul 28, 2009

• #1

So I need to start giving my baby some nutrients but I am broke. I do have some of that blue crystally stuff from miracle grow that you mix in water, but a lot of people here and on the web advise against it.

So I've read that used coffee grounds and ash work as fertilizers and those are two things I have, but I have no clue how to apply them, or in what quantity, or when.

Anyone know?

 

Dirtyboy

Well-Known Member

• Jul 28, 2009

• #2

Just give them the blue stuff you have. Just a little.

 

H

h.h.

Well-Known Member

• Jul 28, 2009

• #3

I use the coffee grounds on a steady basis along with the ferts. They also get all my left over coffee. Ash will increase your ph. I use them sparingly when at all.
I've used the shit out of MG.Overdose. It's not the first choice but it works. I have especially sandy soil perhaps why they never burned on me. It does hurt the taste if used too far into flowering.

 

G

growone

Well-Known Member

• Jul 28, 2009

• #4

I haven't used coffee grounds, supposed to be pretty acid and good nitrogen source?
Have used potash(wood ashes) which can be very good if used properly. Pretty much pure pure potassium and raises the ph. Must be cautiously or you will go to high with ph. I've used 1 tbps per 2 quarts of water. That raised my ph a bit, but not dramatically.
The acid coffee grounds and basic wood ash could mix well together, but you really need to be able to measure the ph to keep in the 'zone'.

 

C

chitownsmoking

Guest

• Jul 28, 2009

• #5

use that miracle grow shit sparringly

 

jteether

Active Member

• Jul 28, 2009

• #6

Thanks guys, all very helpful. Couldn't I mix some powdered egg shells in with the coffee grounds to decrease the acidity? I've read that egg shells can act as lime in gardens which I believe should help decrease the acidity of the grounds and not harm the plant.

EDIT: Or as growone says, I can just use the ash because it would have the same effect.

 

G

growone

Well-Known Member

• Jul 28, 2009

• #7

jteether said:

Thanks guys, all very helpful. Couldn't I mix some powdered egg shells in with the coffee grounds to decrease the acidity? I've read that egg shells can act as lime in gardens which I believe should help decrease the acidity of the grounds and not harm the plant.

EDIT: Or as growone says, I can just use the ash because it would have the same effect.

Click to expand...

Egg shells could be good too. Will be much slower in affecting ph than wood ash. This can be good or bad, depending on circumstances. I think coffee grounds are very quick to lower ph, and are quite acidic. Potash is basically instant, which is not a problem if you carefully measure ph.