More info and pictures: https://aus.social/@treevan/110293053188000541
One recipe:
Articles:
https://www.biochar-journal.org/en/ct/77-Planting-Urban-Trees-with-Biochar
https://stockholmtreepits.co.uk/ - https://www.researchgate.net/publication/341343983_Tree_Pits_with_Structural_Soils_-_Practice_Note_Version_12
It’s the same type of soil I was talking about, not gardening soil…
And holy crap, you really don’t let go, do you?
Yes mate, we always get our clean fill from “garden stores”.
Soil
Fill
It’s in the article
Goodbye