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- Mar 6, 2018
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- County Antrim
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When looking up how to care fo gardenias and other acid loving plants it says to add coffee grounds, is instant coffee too strong even if it's extremely diluted? I don't know where to get hold of coffee grounds, I do have peat moss that I use to make a potting mix for all of my other house plants is that generally enough acid until they are repotted or is it still beneficial to add coffee periodically?