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Questions tagged [coffee-grounds]

For questions about using coffee grounds as a soil amendment/compost.

2
votes
1answer
32 views

Can the filter papers in coffee K-pods be used for composting?

I already know it's a lot of trouble to remove them for composting, but does anyone know if the paper filters inside the K-pods are actually biodegradable? We no longer use the old fashioned coffee ...
8
votes
3answers
118 views

What's this green stuff on my soil?

I dumped my french press on this potted fig tree a few times, perhaps that was a mistake. Today I noticed this this green stuff on top of the soil. What is this?
3
votes
1answer
636 views

Is it helpful to add coffee grounds to a droopy mother-in-law's tongue?

I have a mother-in-law's tongue, Sansevieria trifasciata, that's getting a bit yellow and slightly droopy. A friend recommended that I add some coffee grounds to the soil, which I've been doing, but I'...
2
votes
2answers
368 views

Can coffee grounds be considered soil?

I'm running a test on growing tomato plants with about 80% coffee, and another with about 20% coffee in layers. What one should I expect to do better? Both have silty sand from the bottom of the ...
4
votes
1answer
63 views

How thick do I need coffee grounds to be in order to keep grass back?

I'm running into a slight grass problem where I planted my blueberry bushes, and was wondering how thick I should make my coffee ground mulch around the blueberry bushes to prevent the grass from ...
6
votes
3answers
3k views

How do coffee grounds benefit potted plumeria?

I have heard that adding coffee grounds to the soil - as a top layer/mulch - help potted plumeria. But what about this helps the plant thrive? Bonus Q: I have heard the same of banana peels.
4
votes
1answer
252 views

How should I add spent coffee grounds to Azaleas?

My garden has rocks and weed fabric. Must I remove both and add the grounds to the soil or can I just add on them on top of the rocks?
6
votes
1answer
11k views

Do coffee grounds in gardens deter cats?

There are several sites that suggest using coffee grounds in the garden, to keep out cats. I haven't tried it, but there are some beds on my property which could do without cats digging around and ...
5
votes
5answers
2k views

Can I grow spider plants in coffee?

Long story short, I have stale ground coffee (whoops vacation whoops) and two spider plants growing in pure water. Can I combine the two, or is that too acidic? I know that spider plants like acid, ...
16
votes
4answers
7k views

How many coffee grounds are too many coffee grounds for composting?

I have a pretty steady access to about 4 pots of coffee worth of coffee grounds each day. I have heard coffee grounds are great for a compost pile, but I am wondering how much is too much? Is there a ...
21
votes
10answers
32k views

Can I put coffee filters into my compost?

I've heard that coffee grounds are a good "green"(nitrogen rich) to put in your compost, but I was wondering if I could throw the filter in there as well? They are the standard "accordion side" white ...
15
votes
2answers
2k views

What household wastes can you use to fertilize without composting?

I cannot compost, no room, no permission. My kitchen produces a steady output of used coffee grounds, which is a good slow release nitrogen source (2.3 .06 .6), should not attract pests or transmit ...
10
votes
1answer
1k views

How much coffee grounds should I add to my compost (and how frequently)?

I have been reading that spent coffee grounds can be used for fertilizer and/or composting and also came across this question on this site. I have a compost pile in the yard that holds roughly two 33 ...
60
votes
11answers
95k views

How do I apply spent coffee grounds as a fertilizer?

I've read that spent coffee grounds work well as a fertilizer. But the methods of application are all over the map. Some indicate using it in compost, others suggest spreading it and broken ...