wrote in message
oups.com...
As I have a small garden I rely on general purpose compost from the
garden centres for troughs and tubs, but does this need to be changed
every year?
I would think there are plenty of nutrients left after one season, so
can I just remove roots etc and re-use? Should I add anything to it?
Thanks for any advice.


You can reuse the potting mix. Just remove debris and supplement it with
more mix, if needed. I doubt that there is much nutrient value to most
potting mixes. I would get some Osmacote or other slow release fertilizer
and mix it in before planting.