10 things in Garden
The guide
Plastic pots, trays and stakes crack and fragment outdoors. Terracotta, metal and bamboo are the lasting alternatives.
What actually helps
Garden plastic fragments outdoors into long-lived microplastics.
The science
Plastic nursery pots, trays, and stakes crack and end up in landfill within a season or two. Terracotta, stainless tools, soil blocking, and bamboo stakes are biodegradable or effectively permanent alternatives.
Plastic doesn't biodegrade, it just fragments, which is why single-use garden plastic is such a persistent waste stream. · Stanford University, 2025
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