Blog
Working notes, how-to articles, and the science we work from. Updated regularly through the growing season.
How to read a biochar certificate of analysis
Every bag we sell carries a guaranteed minimum analysis. Here is what each number means, how to interpret it, and which numbers actually matter for garden use.
Read article → May 2, 2026 · journalA landscaper's side-by-side biochar trial in his own raised beds
Notes from amending my own 4×8 raised bed in early May — what I did, what I'm measuring against the unamended bed beside it, and the markers I'll watch as the season goes on.
Read article → Apr 25, 2026 · biochar-101Why hardwood feedstock matters for biochar
Hardwood, softwood, crop residue, manure — every feedstock produces a biochar with different physical properties. Here is what we picked and why.
Read article → Apr 22, 2026 · guideBiochar vs compost — complementary, not competing
Compost cycles quickly and delivers nutrients. Biochar cycles slowly and delivers structure. Here is how they work together.
Read article → Apr 20, 2026 · guideAn Ontario gardening calendar — with biochar overlay
Month by month through an Ontario growing season, with the application windows where a biochar amendment fits best.
Read article →