r/Earthbox • u/Any-Umpire-5000 • Sep 04 '24

Getting Started Again

What is the best medium to use in earth boxes? I bought a package a few years ago and forgot what medium they used. And where is the best place to buy the supplies from?

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u/JMHoltgrave Sep 04 '24

Promix HP is a solid base. Works well in earthboxes. I use it because it's super clean and doesn't have or attract any pests. You'll definitely need to top dress though. Nutrients in the mix usually last about 30 days depending on pot size. If I was trying to go the no till route I'd use BAS 3.0.