andyoliver Posted May 20, 2009 Report Share Posted May 20, 2009 Hi, What sort of pots are safe to use with CPs. I'd like to put my indoor plants in nice post but done want anything to infect the peat. Quote Link to comment Share on other sites More sharing options...
LJ Posted May 20, 2009 Report Share Posted May 20, 2009 Plastic pots are best and they offer good drainage unlike a lot of other planters you can buy (plus with plastic if they dont come with holes you could alwasy add a few yourself). Clay/metal pots arent suitable although if you lined them with pond liner or something similar you could still use them.... Quote Link to comment Share on other sites More sharing options...
-=Joel=- Posted May 20, 2009 Report Share Posted May 20, 2009 Why isnt clay suitable ? Quote Link to comment Share on other sites More sharing options...
mobile Posted May 20, 2009 Report Share Posted May 20, 2009 I like to use tall glazed terracotta pots for plants which prefer cooler roots, such as Cephalotus. Extra drainage can be added if needed by carefully drilling more holes in the bottom using a masonry drill (make sure the drills not on hammer!!). Quote Link to comment Share on other sites More sharing options...
Stefan P Posted May 20, 2009 Report Share Posted May 20, 2009 I think clay and metal leech chemicals that are harmful to the plant. Quote Link to comment Share on other sites More sharing options...
mobile Posted May 20, 2009 Report Share Posted May 20, 2009 I think clay and metal leech chemicals that are harmful to the plant. I wouldn't use metal, unless it was good grade stainless steel (316 S11 or S13). I've not had any problems with glazed terracotta pots. Quote Link to comment Share on other sites More sharing options...
andyoliver Posted May 20, 2009 Author Report Share Posted May 20, 2009 I wouldn't use metal, unless it was good grade stainless steel (316 S11 or S13). I've not had any problems with glazed terracotta pots. Do you mean glazed inside the pot? Quote Link to comment Share on other sites More sharing options...
mobile Posted May 20, 2009 Report Share Posted May 20, 2009 Do you mean glazed inside the pot? They're only glazed on the outside. I like white ones as they reflect more heat. I only have a couple of plants in glazed terracotta pots but I can't say I've noticed any difference in growth rates between them and the ones in plastic pots. I usually choose glazed terracotta when the plant is on display in the house as I find them more aesthetically pleasing than plastic. Quote Link to comment Share on other sites More sharing options...
LJ Posted May 20, 2009 Report Share Posted May 20, 2009 I think clay and metal leech chemicals that are harmful to the plant. Thats what I thought - I'm sure I've read something advising against this. I've never tried it personally though.... wouldnt want to risk it. I made a post last year asking about metal pots and was told it wouldnt be a good idea unless it was lined with something. Quote Link to comment Share on other sites More sharing options...
mobile Posted May 20, 2009 Report Share Posted May 20, 2009 Thats what I thought - I'm sure I've read something advising against this. I've never tried it personally though.... wouldnt want to risk it. I made a post last year asking about metal pots and was told it wouldnt be a good idea unless it was lined with something. I would avoid metal unless you can be sure it's high grade stainless steel. Quote Link to comment Share on other sites More sharing options...
louisduddridge Posted May 22, 2009 Report Share Posted May 22, 2009 Aluminium is ok because it always forms a very unreactive oxide layer on its surface. So it shouldn't have any effect on the plant. I have sat my pots in water, which are in an aluminium tray for years, and they are fine. Quote Link to comment Share on other sites More sharing options...
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