Posted: 11/10/2014 at 19:42
As I am in the midst of renovating/ lining a badly leaking concrete built pond I have decided to use gravel only to re pot all my water plants. 3 days of baling out silt from broken containers, etc. has persuaded me. I've always used Aquatic compost before but in fact have discovered that if you have a good root system on the plants ( inevitably with some old soil, etc attached ), you can just gravel them. The detritus which arrives even in a new pond should provide sufficient "gunge" for the roots to get into. Not many are going to be doing much growing at this time of year so I think it is OK. I have emptied a couple of bags of Aquatic compost in the deepest part of the pond and a little on the various shelves. This gives a habitat for all the Dragonfly larvae, Beetles, etc which I rescued and will provide some medium for the plant roots by next Spring.
I don't watch Monty or Rachel but I think I agree with them on this