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Preventing Container Stains on Stone Patio

14 years ago

I was told that in addition to raising the pots off the ground, I should put a screen over the hole of the container, and put a piece of broken terracotta above that, with sand above that, and then soil, so that the sand would act as a filter to clean the water coming out of the drainage hole.

Now, I have a landscaper who is saying I should not use sand or clay/terracotta, but just put a screen with gravel on top, with a fabric barrier on top of that, and then the soil. Sounds fine for drainage, but doesn't seem like gravel is fine enough to clean the water, though he thought sand or terracotta would clog the drainage hole altogether.

Any suggestions for the best way to minimize staining, while not drowning my plants?

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