During the summer I fed some of my plants in pots 'sulphate of iron'.
Now I have moved all my pots to a sheltered position for the winter.
I have patches of rust from the sulphate, is there a way of removing the stains.
Now I have moved all my pots to a sheltered position for the winter.
I have patches of rust from the sulphate, is there a way of removing the stains.