• is there an easy way to make London tap water acceptable to camelia, azalea etc? can you do something as simple as add a bit of vinegar to it? my bucket of rainwater is about to run out. I sometimes use cold leftover boiled water, but given the state of my kettle there tends to be a load of limescale bits in it, even if the water isn't 'hard' anymore.

  • You could dress the plants with peat. Also if you are a coffee wanker the grounds are acidic.

    A final resort is to use urine.

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