fromwww.theguardian.com
1 day agoHouseplant hacks are used coffee grounds good for plants?
Used grounds are slightly acidic and dense. Sprinkled thickly, they can form a crust that repels water and suffocates roots. Instead, mix small amounts into compost (no more than 10%), or add to an outdoor compost heap where worms can break them down properly. Never dump fresh, wet grounds straight on to houseplants. The test I mixed a few tablespoons of dried coffee grounds into the soil
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