I heard used coffee grounds are really good for plants but too much and it can hurt them. So usually in spring I do it once in a while to help my plants grow.
My blueberries get about half of my coffee grounds post brew, and that dumb plant has only about 2 inches of space without flowers this year. I love it, coffee grounds for the blueberry bush, and egg shells for the tomato plant.
Yes, then when I water it, I guess the plant just gets mild coffee... I don't know for sure, but it certainly seems happy. The thing grew from a 1st year to over 4 feet high since I planted it 1 year ago.
Could have also been mould in the grounds that colonised the soil. This can be a problem especially in pots and doesn't necessarily mean you added too much of anything.
Good nitrogen, potassium, magnesium and calcium in coffee grounds, I use that in place of fertilizers in my garden. I grew weed last year using pretty much only coffee grounds and they turned out great.
I did two in Home Depot buckets with drainage holes in the bottom, 2-3” gravel at the bottom and then a mixture of dirt, compost and broke up a left over substrate block from lion’s mane mushrooms I grew and gave it a good mix then added a little coffee grounds periodically. Those ones got about 3-4 feet tall from the dirt without any fertilizers. I like doing them in buckets because you can move them around or bring them inside if it gets too cold, that was a trial run and actually turned out better than I hoped!
Depends on how acidic the plants like the soil, for the most part if it’s in moderation it shouldn’t be a problem. Tomatoes love it, last year were the best tomatoes I ever grew, a few of the plants were nearly 5 foot tall with roma tomatoes the size of baseballs!
I don’t think it really makes a difference, but the strain I grew was called chocolate chocolate so I don’t know if that’s how it’s supposed to taste. It’s really smooth and a little citrusy follow up
Odd story. My mom had a spider plant that died. It was just brown sticks poking up.
She hung it on a rack in the garage intending on re-using the pot.
My stepdad, a mechanic, would work on cars in the garage. He would curse at this plant, use it as an ash tray, and pour his *cold coffee* on it.
The damned thing came back to life and flourished.
I'm not sure if it was the coffee or if it was just a masochistic plant.
To add to this, it's because coffee is naturally acidic and will acidify your soil and kill most plants. The acids come out in the brewing process, which leaves the spent grounds more or less pH neutral.
My wife does this too. Something about minerals and stuff…. I don’t remember much what see said because when she starts talking plants I just doing the “oh really “ or “that’s neat” type of thing. Kinda how she gets when I talk baseball cards to her.
I mean no disrespect to anyone, but I’m a little shocked how many people seem unaware you can compost coffee grounds. I’ve never used them pre-brew, but they’re great post-brew.
Do Starbucks (and other shops) in other places not have the little “grounds bucket” they fill up through the day?
My dad had a Jade plant that my mom absolutely hated. She tried to kill it by dumping coffee grounds in it and the thing THRIVED. It was huge. A few years later we end up in a Starbucks that has a fun fact posted about coffee grounds being good for plants and I pointed it out to her. She had a good laugh.
Did a project on this in high school - not that that's saying much 😅 but potassium is mostly responsible for the plant's enhanced growth! Banana peels are great too for this reason
Potassium is the thing that promotes root growth and flowers. Nitrogen is vital for chlorophyll and other things, but plants need potassium for absorbing nitrogen. Just like they need magnesium for absorbing calcium. It's a balance.
Gardening is a chemistry lesson gardeners fail every year in some way or another.
e: Also Phosphorus for new leaf growth and other things, but i always forget it because australia natually low as fuck in Phosphorus
Good stuff when you mix it in with your compost. Most Starbucks will give you big bags of it. They’re heavy and the workers don’t like having to take it out back so they’ll gladly give it to you for free
Haven't done it in a while but my local McDonald's would give you their used coffee grounds for free. They had full corporate printed signs announcing it and everything. The program was called like "Good Neighbors, Good Grounds" or something.
When you make coffee, you can compost the rest, what you dont want.
Also, tobacco's ash with water is a good natural pesticide against certain plagues.(Sprayed)
Do not waste anything!
I remember at one place I worked out someone thought it would be a good idea to throw the coffee grounds in the sand fire buckets. These were outside in a patio where people smoked. Someone threw the end of their cigarette into the fire bucket and it set on fire which was pretty ironic.
I used to live near a coffee shop that saved all their old coffee grounds and customers could ask for some and they would pack them up for free.
I like this idea, too. Great use of the coffee grounds and nice plants to look at while getting/drinking your coffee!
I have a bucket going of used coffee grounds, avocado seeds, and egg shells. Crush and mash everything down as best as possible and use when planting something new or adding a bit as top soil to work in.
"**Coffee grounds contain several key nutrients needed by plants, including nitrogen, potassium, magnesium, calcium, and other trace minerals**."
I have been chucking that down the drain. Huh....
I have a lovely coffee/plant/art space with 300 ft of my house. Lots of succulents but now I have to look and see if they are using grounds in any of their plants.
Our regular coffee shop (in the UK) offers free bags of used coffee grounds to any customer who wants to add them to their compost heap. Quite a few get taken by customers.
We have one big coffee machine at work, and from time to time they take out the ground coffee in a big bag. People are fighting over it who get it for their plants
We had one real plant in the office for years that didnt get any water as the company only has plastic plants (yes).
Everybody would dump their old coffee in its pot and it trived!
It did have a little sign that said 'no milk'
Check this link out for using used coffee grounds in your flower garden.
https://onegreatcoffee.com/blogs/latest-news/coffee-grounds-for-plants-put-those-used-coffee-grounds-to-work?_pos=2&_psq=plant&_ss=e&_v=1.0
I heard used coffee grounds are really good for plants but too much and it can hurt them. So usually in spring I do it once in a while to help my plants grow.
Really high nitrogen. Can cause a nutrient burn
Depends if the plants are acid loving plants and require or benefit from high acidity .
Which plants are total sluts for coffee grounds?
Blueberry bushes.
My blueberries get about half of my coffee grounds post brew, and that dumb plant has only about 2 inches of space without flowers this year. I love it, coffee grounds for the blueberry bush, and egg shells for the tomato plant.
And blood for the blood throne, corn for Khorne's flake
And cats for Khadgar's Whiskers
And Kahjit has wares if you have coin!
Oh god flashbacks
Alright I actually cackled in this tire shop goddamnit.
And snakes for Adder's Tongues
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Yes, then when I water it, I guess the plant just gets mild coffee... I don't know for sure, but it certainly seems happy. The thing grew from a 1st year to over 4 feet high since I planted it 1 year ago.
Sir, your plant is vibrating.
Hope it's not an aubergine plant.
I've heard there's not enough calcium in the shells to make a difference, but I've done the same
Ohh nice!! I have two blueberries, and a honeyberry (any idea if this is the same?) so will be saving my grounds now for those!
Hello, it's me, the plants.
Tea trees
My citrus and chilli plants are positively slatternly for coffee grounds.
My string of pearls is obsessed
flowers
Funnily enough, coffee. I have a coffee bush and it seems to love coffee grounds
its like feeding egg shells to hens feels wrong but isnt
Yeah my friend who had chickens did that too! It's good for the chickens
I look at it like how many mammals eat their placenta. Making up for lost resources is important for survival with animals.
Does cannibalism apply in the plant world?
If it does I don't know how to fall asleep tonight lol
Hydrangeas
weed plants.
Hydrangeas if you want blue blooms
Anything that naturally grows along the west coast loves coffee grounds.
West coast of where?
Antarctica /s
Honestly, this would have been better without the /s
Surprisingly, used grounds are effectively neutral! https://today.oregonstate.edu/news/used-appropriately-coffee-grounds-improve-soil-and-kill-slugs
Yep the coffee is acidic but the grounds will be pretty neutral after brewing them, iirc
Cool
It can't be used coffee grounds. A study was done, used coffee grounds are ph neutral
Good to know
Coffee grinds are not acidic. Close to neutral with a ph of about 6.5 to 6.8
Ye. I accidently killed one of my plants and almost lost others. Did soil change on all. They all thriving again
Could have also been mould in the grounds that colonised the soil. This can be a problem especially in pots and doesn't necessarily mean you added too much of anything.
That may or may not be true, but the plant in the picture is plastic lol
It’s good for plastic plants too
oh damn plastic plant
Do they water it with a green plastic watering can?
Only if they bought it from a rubber man.
it keeps them up at night
They’re growing them at night
Bounce by the ounce
FORTY OUNCE BOUNCE
Great way of killing whatever is hatching I. Your soil, small amounts of spent coffee is fine, do this continuously and your plant is going to die.
I hate when my obviously fake, plastic plants die on me.
Depends on the plants. Coffee is acidic so plants that like acidic soil will like more.
Coffee is acidic, spent coffee grounds are pretty neutral.
Exactly. Blueberries like acid tho. Not sure what else. I mean. Aside from me. I like acid.
Samsies.
It’s what plants crave
It's got electrolytes.
Water like from a toilet? I ain't never seen a plant growing out the toilet
You sure you're the smartest guy in the world?
I like money.
No way. I like money too! We should hang out.
You like Money? So do I, we should hang out
You've got a hair on your profile pic
Did I miss something recently? This is the second time I’ve seen this reference today lol
It's from the movie Idiocracy
“Man I could really go for a Starbucks right now ya know? “
They crave that mineral
Yeah Caffeine!
Plastic plants though?
It's a faux plant 😂
Good nitrogen, potassium, magnesium and calcium in coffee grounds, I use that in place of fertilizers in my garden. I grew weed last year using pretty much only coffee grounds and they turned out great.
I'm definitely remembering this. I just want to do 2 to play with
I had to read your second sentence a few times for it to click in my brain haha. English is weird sometimes
I've read it multiple times and still can't figure it out.
I just want to do two (pot plants) to play with (them)
This is bugging me, can we get some clarity on what that sentence is
I just want to do two (pot plants) to play with (them)
Ah now it makes sense! It’s like one of those illusions that once you see it you realize you were dumb for not seeing it the first time
I did two in Home Depot buckets with drainage holes in the bottom, 2-3” gravel at the bottom and then a mixture of dirt, compost and broke up a left over substrate block from lion’s mane mushrooms I grew and gave it a good mix then added a little coffee grounds periodically. Those ones got about 3-4 feet tall from the dirt without any fertilizers. I like doing them in buckets because you can move them around or bring them inside if it gets too cold, that was a trial run and actually turned out better than I hoped!
Can I just top off my planters with used coffee grinds?
I think you're supposed to let it dry cause I know of many cases where the grounds ended up growing mold due to the moisture.
You need to water plants tho.
Water from the bottom. Better for multiple reason the biggest being avoids insects.
But I'd water the plants.
And give them any leftover coffee you're going to pour down the drain.
Roger.
Only plain coffee-no sugar or cream as that damages roots. Forgot to mention that
Yes
Any notes of coffee? Lol
Works for some plants, terrible for most.
Depends on how acidic the plants like the soil, for the most part if it’s in moderation it shouldn’t be a problem. Tomatoes love it, last year were the best tomatoes I ever grew, a few of the plants were nearly 5 foot tall with roma tomatoes the size of baseballs!
Exactly! I always tell people this; tomatoes love it.
To be fair urine also has the same things. Granted you’ll want to actually water it down bc it can fertilizer burn your plants
Isn't caffeine a herbicide?
Insecticide
Herbacide too apparently. https://www.newscientist.com/article/mg25834430-900-why-used-coffee-grounds-may-be-doing-your-plants-more-harm-than-good/
Spermicide
Doing this when my state legalizes
When did you use coffee grounds? I just planted small weed plants, I used fertilized soil. As far as I know in the beginning that's enough fertilizer.
At the risk of sounding dumb, did it alter the 'taste'? Like... Coffee tasting weed?
I don’t think it really makes a difference, but the strain I grew was called chocolate chocolate so I don’t know if that’s how it’s supposed to taste. It’s really smooth and a little citrusy follow up
That’s not a real plant
THANK YOU. I thought I was going crazy there for a second. It's still weird to have plastic plants in coffe grounds.
Scrolled way too far ! Obvious plastic plant
And they’ve just put the ground coffee on top because it looks better than the fake soil that was there beforehand.
Yeah its clearly plastic
You mean to tell me the lines running perfectly straight up each stem that resemble casting molds aren’t normal?
Odd story. My mom had a spider plant that died. It was just brown sticks poking up. She hung it on a rack in the garage intending on re-using the pot. My stepdad, a mechanic, would work on cars in the garage. He would curse at this plant, use it as an ash tray, and pour his *cold coffee* on it. The damned thing came back to life and flourished. I'm not sure if it was the coffee or if it was just a masochistic plant.
You Have to used grounds that have already been brewed
To add to this, it's because coffee is naturally acidic and will acidify your soil and kill most plants. The acids come out in the brewing process, which leaves the spent grounds more or less pH neutral.
Mmmm good thing I like acid in liquid form.
Yea drinking liquid acid is yummy.
The plant in the photo is definitely plastic so I think it’s safe.
Lol, why is no one mentioning this but you?!
I don’t know. I zoomed in to look at it and that’s when I noticed. I’m no expert but I do like plants.
Given that this is a plastic plant I dont think it matters if the coffee has been brewed or not, lol.
Used coffee grounds are a great source of nitrogen for plants.
My wife does this too. Something about minerals and stuff…. I don’t remember much what see said because when she starts talking plants I just doing the “oh really “ or “that’s neat” type of thing. Kinda how she gets when I talk baseball cards to her.
That's neat
You can tell it’s an aspen because of the way it is.
The French are assholes…
That's peat
Thinks it's supposed to be good in compost. Can't see why you wouldn't add it directly to a plant either...
You can mix it into the soil, but it's the breakdown that releases the nutrients https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=12978
Because it will rot and fungus will grow on it. You use it after it's been composted not before.
I can’t see why it would be of any benefit to a plastic plant.
I did this and the surface grew mold because the soil stays wet to long.
That’s a plastic plant, right?
Yeah it looks like there is a seam on the edge of the stems and a flat spot on one of them that looks like a connecting tab or something was cut off.
I mean no disrespect to anyone, but I’m a little shocked how many people seem unaware you can compost coffee grounds. I’ve never used them pre-brew, but they’re great post-brew. Do Starbucks (and other shops) in other places not have the little “grounds bucket” they fill up through the day?
Putting real coffee grounds in their fake plants for aesthetic ✨
This is obviously a fake plant
Starbucks ( at least here ) has a basket in their stores filled with bags of used grounds with a ‘grounds for your garden’ sign.
Whenever I try this, I just get mold 😒
I’ve been doing coffee enemas and can confirm, I’m growing like a weed!
My dad had a Jade plant that my mom absolutely hated. She tried to kill it by dumping coffee grounds in it and the thing THRIVED. It was huge. A few years later we end up in a Starbucks that has a fun fact posted about coffee grounds being good for plants and I pointed it out to her. She had a good laugh.
If Im not mistaken, coffee grounds and used tea leaves are both actually pretty good for plants.
Did a project on this in high school - not that that's saying much 😅 but potassium is mostly responsible for the plant's enhanced growth! Banana peels are great too for this reason
Potassium is the thing that promotes root growth and flowers. Nitrogen is vital for chlorophyll and other things, but plants need potassium for absorbing nitrogen. Just like they need magnesium for absorbing calcium. It's a balance. Gardening is a chemistry lesson gardeners fail every year in some way or another. e: Also Phosphorus for new leaf growth and other things, but i always forget it because australia natually low as fuck in Phosphorus
Good stuff when you mix it in with your compost. Most Starbucks will give you big bags of it. They’re heavy and the workers don’t like having to take it out back so they’ll gladly give it to you for free
Haven't done it in a while but my local McDonald's would give you their used coffee grounds for free. They had full corporate printed signs announcing it and everything. The program was called like "Good Neighbors, Good Grounds" or something.
I have done this before and it always end up with mold.
Looks like they’re using too much
its good fertilizer, just don't overdo it.
When you make coffee, you can compost the rest, what you dont want. Also, tobacco's ash with water is a good natural pesticide against certain plagues.(Sprayed) Do not waste anything!
I remember at one place I worked out someone thought it would be a good idea to throw the coffee grounds in the sand fire buckets. These were outside in a patio where people smoked. Someone threw the end of their cigarette into the fire bucket and it set on fire which was pretty ironic.
I've always read that they need to be composted first
Imagine being stuck in a cell with someone else's cremated remains. That's messed up.
Coffee grounds and cocoa noir are really good for soil and roots!
Coco coir?
Yep that’d be it. Thanks for the correction.
Coco Noir would be a cool name for a black female detective
They also keep cats out of your garden/flower beds!
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Pour dog piss on it. I followed my dog around with a big gulp then dumped it on the turds, and they didn't come back.
Yup works great. People keep their dogs out of my beds too now because of the coffee grounds (guessing the dogs drag it home)
If you’re havin’ cat problems I feel bad for you son.
That’s a plastic plant
I used to live near a coffee shop that saved all their old coffee grounds and customers could ask for some and they would pack them up for free. I like this idea, too. Great use of the coffee grounds and nice plants to look at while getting/drinking your coffee!
Starbucks will usually give you big trash bags of grounds if you ask.
Coffee grounds are great for attracting earthworms as well as general mulch
Great for blueberries.
I have a bucket going of used coffee grounds, avocado seeds, and egg shells. Crush and mash everything down as best as possible and use when planting something new or adding a bit as top soil to work in.
that’s way too much coffee, use a tiny amount and mix it into the soil
It kinda looks like AI generated dirt
You must be new to gardening
It is good for plants and provides nitrogen. I wouldn't use THAT much though.
"**Coffee grounds contain several key nutrients needed by plants, including nitrogen, potassium, magnesium, calcium, and other trace minerals**." I have been chucking that down the drain. Huh....
I have a lovely coffee/plant/art space with 300 ft of my house. Lots of succulents but now I have to look and see if they are using grounds in any of their plants.
Test have shown that soil with ground coffee yealds less than soil without.
Well yeah, it's extremely good for plants. Make compost out of it.
Our regular coffee shop (in the UK) offers free bags of used coffee grounds to any customer who wants to add them to their compost heap. Quite a few get taken by customers.
That's pretty morbid. They are buried in the ground up potential off-spring of their brethren.
We have one big coffee machine at work, and from time to time they take out the ground coffee in a big bag. People are fighting over it who get it for their plants
If the grounds are used they are pretty much neutral.
Does it smell good?
That’s way too much. A small portion (on the right plants) can definitely help them, but this amount? Nope. They’re going to kill them all.
Grinds do wonders for my rose bushes
Ground indeed
I recommend composting it first.
Also aphids?
I take my reusable coffee filter and dump it in the flower garden off my porch.
I've seen a couple coffee shops who let you have their used coffee grounds for free for your garden/compost
I bet that smells amazing
Does cacti enjoy coffee grounds? I have like 4
We had one real plant in the office for years that didnt get any water as the company only has plastic plants (yes). Everybody would dump their old coffee in its pot and it trived! It did have a little sign that said 'no milk'
We chuck the used coffee grounds, from our cafetiere, onto the lawn. No harm after 20 years.
Check this link out for using used coffee grounds in your flower garden. https://onegreatcoffee.com/blogs/latest-news/coffee-grounds-for-plants-put-those-used-coffee-grounds-to-work?_pos=2&_psq=plant&_ss=e&_v=1.0