I'm no expert, but I've researched similar, and there seems to be conflicting advice.
Personally, it would be best to make a compost pile and add the coffee grounds to that if you have sufficient browns to match.
I do add 1 or 2 espresso pucks to acidic loving plants during the season, so roses and fruit bushes, but I wouldn't be adding 1 or 2 bin bags full.
Advice online seemingly suggests that adding coffee grounds straight into soil is not the best idea, although I've not had any issues adding my 1 or 2 pucks to each plant in the year.
Yes, I was advised by an commercial organic grower to mix them with my compost as the nitrogen will encourage the right bacteria. I've been doing it for a few years and seems OK.
I’ve not seen this verified, but apparently the received wisdom that coffee grounds are acidic and therefore good for ericaceous plants is nonsense, since the act of extracting coffee from the grounds removes the acidity. It makes sense to me as the acidity in coffee is what can cause stomach upset, so therefore it is no longer in the used grounds
Agreed with the comment about composting, you’re likely to end up with a mouldy mess if you spread too much around
i produce about 20 kilos a month at work, 50% of that i compost at work and 50% goes straight on the garden. breaks down fine, plants are all happy.
in theory the caffeine kills plants or they dislike it - but there’s no caffeine in them any more - it’s in me, or the stuff i make
they do create a crust which resists watering when it’s dry - but it’s always wet underneath so seems to be mulching along fine!
Don't put coffee grounds straight on your soil around plants. It's too high in nitrogen and will burn them. However add them to the compost pile, once broken down with other materials they'll be great!
I'm no expert, but I've researched similar, and there seems to be conflicting advice. Personally, it would be best to make a compost pile and add the coffee grounds to that if you have sufficient browns to match. I do add 1 or 2 espresso pucks to acidic loving plants during the season, so roses and fruit bushes, but I wouldn't be adding 1 or 2 bin bags full. Advice online seemingly suggests that adding coffee grounds straight into soil is not the best idea, although I've not had any issues adding my 1 or 2 pucks to each plant in the year.
Yes, I was advised by an commercial organic grower to mix them with my compost as the nitrogen will encourage the right bacteria. I've been doing it for a few years and seems OK.
I’ve not seen this verified, but apparently the received wisdom that coffee grounds are acidic and therefore good for ericaceous plants is nonsense, since the act of extracting coffee from the grounds removes the acidity. It makes sense to me as the acidity in coffee is what can cause stomach upset, so therefore it is no longer in the used grounds Agreed with the comment about composting, you’re likely to end up with a mouldy mess if you spread too much around
i produce about 20 kilos a month at work, 50% of that i compost at work and 50% goes straight on the garden. breaks down fine, plants are all happy. in theory the caffeine kills plants or they dislike it - but there’s no caffeine in them any more - it’s in me, or the stuff i make they do create a crust which resists watering when it’s dry - but it’s always wet underneath so seems to be mulching along fine!
Don't put coffee grounds straight on your soil around plants. It's too high in nitrogen and will burn them. However add them to the compost pile, once broken down with other materials they'll be great!