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Coffee grounds killed my strawberries?

post #1 of 8
Thread Starter 
So I've read over and over, in various places, about how great coffee grounds are as fertilizer. Both in the compost heap, and directly into your garden soil.

I don't make coffee often, but since getting my garden together, and the compost pile going, I was looking forward to my next brew, since the grounds would no longer go to waste!

It was about a week ago, I think, that I took my grounds, swished them with some water, and poured them into one of my hanging strawberry planters.

Now I check my berry plants neurotically several times a day -- except for two planters, which are under the eaves. I do check them, but they're more awkward to get to, and a bit of an experiment anyway (they get almost no light, but I'd run out of other places to hang them from lol).

It's been raining like crazy for like 2 weeks straight here, so I haven't been checking on my plants as often, but still a couple times a day. I *thought* I was checking those ones at least once a day recently, but I could be wrong.

I got a real shock this morning when I went outside. I checked one of the under-eaves plants and they were DEAD. Or close to it. Wilted, shrivelled, brown. My first thought was "oh dear, I forgot to water them, because everything else has been watered by the rain, and I didn't realize these guys were too sheltered and now they're dried up."

But, the OTHER plant that's under the eaves is just fine, and its soil is just as dry.

Every other strawberry plant is doing fabulously (I have 25 around the porch), I'm getting lots of berries, including a few that look like they're just about ready to ripen (surely they can't get much bigger!).

The ONLY thing I can think of that's different for this plant, is the coffee grounds.

But why on earth would this happen? They're supposed to be GOOD for the plants.
post #2 of 8
oh wow...i just put coffee grounds on our strawberries.

i don't know, but i have not noticed any difference in ours.
post #3 of 8
The problem may be that while coffee is acidic, used coffee grounds are essentially neutral. The acid gets washed away. Used coffee grounds will actually raise the ph level toward neutral, rather than acidity.

Good Luck.
post #4 of 8
ETA: I reread your post, and the amount of damage you report sounds like more than just watering one time with a coffee ground "tea", but it's hard to say...
post #5 of 8
Thread Starter 
These were used coffee grounds -- I just swished them with some water to rinse out the bodum and make it easier to pour. Is neutral ph or acidity the goal?
post #6 of 8
Strawberries like acidic soil, but that amount of damage still sounds a bit extreme. Good luck with the rest of your berries. I am jealous!
post #7 of 8
I have never applied grounds directly to anything but I've excellent luck with them in the composts. I get the big bags of them from Starbucks.
post #8 of 8
yikes! i just put them all over our strawberries....
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Mothering › Forums › Natural Family Living › Diggin in the Earth › Coffee grounds killed my strawberries?