24/11/2011 at 15:29
No. 3, Genius, never seen this before, I wonder if there is a product designed for the job?
No. 7, Water-retaining granules.
I can highly recommend RainGel products from www.plant-watering.com I have used them for years and they massively reduce the amount of watering need in baskets and pots. Good for you and the environment.