"john zeiss" wrote in message
...

I have a lot of plants in Pots in a very small garden, and like to move
them around quite a bit according to whats in flower.

I like to have a free *draining* soil in the pots, but adding sand ends up
making them very heavy; especially the terracotta ones.

Is there anything I can use to 'add' to the soil to improve drainage,
that will not result in a increase in weight? Thanks.

You could use chunks of polystyrene packing foam in the base of your pots in
place of crocks. This would make a considerable difference to weight *and*
you'd be using significantly less compost, which could mean quite a saving
if you have to buy it in.

Spider