I have got into gardening over the last two years. I am planning some
re-building work and have put most of my plants into pots-upto dustbin size.
However I used B&Q type compost rather than garden soil-some black soil but
all based on heavy clay-to avoid weeds.One or two years down the line many
plants are suffering.I know watering is more required for pots , but I am
begining to suspect that the bought -in compost is not really upto the job.
Any comments please.