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Is coffee good for plants?

by Sylvie
(Herndon, Virginia)


QUESTION:

Is coffee good for plants? I don't like the idea of throwing away any kind of organic waste. But I want to be sure that it's OK to put coffee around plants.

ANSWER:

If you are talking about adding used coffee grinds to your garden or to your compost pile, the answer is yes.

Coffee grinds are high in nitrogen and make a great addition to the organic matter around your flowers or vegetables.

You can either sprinkle the coffee grinds directly onto the soil, or add them to your compost bin or pile.

If you add them directly to the soil, keep in mind that coffee is also acidic, so you may also want to add something alkaline, like brown leaves.

This is a great question, because we all throw away a huge volume of used coffee. It may not seem like much when you look at what's there are after brewing one pot, but when you consider how much you throw away during the course of a year, it's quite a lot.

If we all composted our coffee, it would make a considerable difference.

Comments for
Is coffee good for plants?

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Jul 02, 2010
Stale coffee
by: Anonymous

Can you sprinkle non-brewed coffee that has gone stale around your plants or does it have to be brewed coffee grounds?

May 20, 2010
Hibiscus plants love coffee, too!
by: Anonymous

I have had a huge Hibiscous bush-tree for over twenty years and it's never blossomed that much. All of a sudden this year it is EXPLODING with blossoms and no white flies. Well, I tried to think what had I done differently. Then it hit me--I had put coffee grounds several times about a month before around the trunk....now, after reading about the miracles of coffee for many plants, I figure this must be it. I have just tried pouring room temperature coffee mixed with a lot of water around my Plumbago plants and we'll see what happens.....also my hydranga plant which hasn't blossomed for years.


Apr 14, 2010
That's great!!!
by: Anonymous

This will help me a lot!! Thanks a lot!!!

Apr 04, 2010
coffee plants
by: Anonymous

yess it is because it let my little plant grow bigger than ever

Feb 24, 2010
Plantiction
by: Aussie

I think you should make it decaf...I'd hate to think that you would INTENTIONALLY get your plant hooked on caffeine!!!!!!

Feb 04, 2010
Science fair
by: Anonymous

I am doing a project for Science fair that includes coffee and plants. thanks for the information

Feb 02, 2010
Brewed coffee
by: Anonymous

Um... I'm not sure, but I think that it is good to feed plants BREWED coffee at room temperature... I read another comment that said "It is okay to feed plants brewed coffee, at room temp. (of course)." But I am doing a science project and I wanted to se if plants grow better/taller/faster with coffee and water instead of just water. So pretty soon I'm gonna find out! :)

Dec 28, 2009
Used coffee grounds
by: Anonymous

Worms love coffee! I put all my used coffee grounds in my worm farm/compost bin.

Oct 11, 2009
coffee grounds
by: ur mom

i have used coffee grounds to grow my tomatoes and it worked wonderfully.

Jun 30, 2009
Tried
by: Anonymous

My mother has tried this for a while. I can't say it has worked but she did get some nice flowers on her Gardenia bush. Certainly hasn't killed it...

Jun 04, 2009
Is Coffee good for plants?
by: Anonymous

My wife and I have been watering our houseplants for years with left over coffee. I get up in the morning and the first thing I do is empty the left over coffe on some houseplant. wE HAVE A PEACE LILY from my wife mothers funeral sisteen years ago which we divide every spring into four more plants and give away, and it has had nothing but coffee.

Mar 16, 2009
the whole bag...
by: Anonymous

I had some old coffee that was in a bag (gaetano's the stuff from sun belt imports) like it was about 2 1/2 cups...My plant appears to be still alive, well its a bush in a bucket, but i havent seen to much of a difference...i sprinkled stuff on top of it, not really mixed it, so i'm seeing how that will work, i'll keep everyone posted :P

Feb 09, 2009
Coffee is good
by: Anonymous

Yes brewed coffee is good for your plants at room temp. I had a tree in my office that I rescued was on its last leg and was just about dead and just starting adding coffee without any sugar or creamer of course (no brainer)not knowing that is was good for it and it grew so big and was green and everybody was asking me where did you get that plant and I told them it was the one from the front office they were surprised and said it looks great. I have been adding coffee to my plants ever since.

Oct 26, 2008
still curious
by: Anonymous

That is what i am looking for. I assume that it is okay, but want to make sure. I do not like be wasteful and think coffee could be a nice addition to plants...in moderation of course.

Sep 17, 2008
What about...
by: Scammah

What about just left over coffee that has been made you know the liquid coffee... Can you pour it on your plants as long as it's room temp?

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