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Old 05-27-2015, 06:06 AM
 
Location: South Carolina
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the other day I was cleaning some of my old planters and using bleach and warm water to clean em really well because I wanted to make sure that no disease was carried over into the pots . A neighbor said she had never heard of bleaching old planters to rid it of any thing carried over . Do any of you do this ? I was just curious if I was the only one that did this ?
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Old 05-27-2015, 07:47 AM
 
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Yes a mild bleach solution is effective at killing pathogens in non-porus containers. Might even be somewhat effective on very clean non-rotted wood and clay pots with a glaze.

All my employees who prune on a regular basis keep bottles of a bleach solution to spray pruners with if they suspect a plant is diseased. That and all pruners are sprayed at the beginning and end of the day allowed to air dry then are slight oiled.
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Old 05-27-2015, 09:44 AM
 
Location: Denver/Boulder Zone 5b
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I tend to rinse my tools regularly as I use them, but never with bleach. Since I leave all of my containers full of the previous season's mix, I tend to not clean the containers, either. I haven't had issues with disease [yet], but I should probably be proactive rather than reactive.

What is the general formulation for a mild bleach solution that is capable of killing harmful pathogens?
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Old 05-27-2015, 09:55 AM
 
Location: Des Moines Metro
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Yes, I use bleach in a pump spray bottle, 2 parts water to 1 part bleach, and then I let the pots/planters sit in the direct sun for 2 - 3 hours.
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Old 05-27-2015, 10:10 AM
 
Location: South Carolina
14,476 posts, read 20,106,934 times
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yep 2 parts water to 1 part bleach and then I let the pots sit over night . Make sure to rinse and dry very well before using . I think I tend to be more pro active than re active just to be safe .
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Old 05-27-2015, 10:21 AM
 
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That dilution mix is way to high and very toxic to humans and animals.

1:10 will kill any and all pathogens.
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Old 05-27-2015, 11:36 AM
 
Location: Former LI'er Now Rehoboth Beach, DE
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I now use oxiclean and find it works quite well.
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Old 05-27-2015, 11:48 AM
 
25,627 posts, read 31,931,585 times
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Quote:
Originally Posted by nuts2uiam View Post
I now use oxiclean and find it works quite well.
For pathogen killing you would be better to use a improved hydrogen peroxide product made specifically for use in close proximity to humans as it has less toxicity than bleach.
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Old 05-31-2015, 12:25 AM
 
Location: LV
239 posts, read 143,791 times
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I clean my old planters before re-using. I use soapy water and when dry I spray with hydrogen peroxide or alcohol.
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Old 05-31-2015, 06:40 AM
 
Location: Two Rivers, Wisconsin
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Bleach is fine in the right ratio. I've watered my hibiscus with a bleach solution before bringing it indoors for the winter. Doesn't harm the plant and kills any unwanted spider type visitors.
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