Long, material use
I appreciate the enthusiasm, but I think this information is harmful without considering the materials.
The PET bottles shown break down quickly in direct sunlight. They also absorb whatever compounds it comes in contact with and leeches them back out.
Planting in clear containers also impedes root growth, further limiting what can be grown in the containers.
An opaque polyethylene (HDPE/number-2 or LDPE/number-4) would be better choices for use in the garden.
@socalledunitedstates I am all for a DIY post, but I feel like quite a few of these kinds of guides overlook the longevity, practicality, and safety in favor of having content and an easy win.
Thanks for posting guides though! It's awesome to see people maintaining excitement for becoming more food independent 👍
Long, material use
@cooler_ranch Hmm. Not to doubt you, but the guy who writes that blog is a professor and expert on sustainable development and plants (https://containergardening.wordpress.com/about/). I've also seen water bottles recommended for gardening in a ton of different places and never heard about this
I want to make sure people are safe though, so do you have a source I can look at?
@socalledunitedstates This one has a quick digest of available plastics and their appropriateness in the garden:
I had learned from other gardeners to really only rely on number-2 HDPE plastics, but apparently the others are ok for shorter term use according to this.
@socalledunitedstates I don't think the PET bottles are an immediate health risk. I do think it will deteriorate quickly though.
I think that if you give beginning enthusiasts unsustainable projects that their enthusiasm and trust will dwindle.
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