Soil Building Amendment KitSoil Building Amendment Kit
Biochar, castings, rock dust, kelp, neem, mycorrhizae.
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- 6 premium amendments in one curated kit
- Pre-charged biochar for lasting soil carbon
- Mycorrhizal inoculant wires roots into the soil web
- Covers 50–100 sq ft with rates and timing included
Field-tested performance
The details that matter
Everything that ships
- Pre-charged biochar (2 lbs)
- Worm castings (4 lbs)
- Glacial rock dust (3 lbs)
- Kelp meal (2 lbs)
- Neem cake (1 lb)
- Mycorrhizal inoculant (4 oz)
- Application guide
Honest note: mycorrhizae need root contact and hate high-phosphorus synthetic fertilizer. If you drench beds with quick-release fertilizer, you cancel the inoculant — pick one approach.
Questions, answered
Do I use all six at once?
Mostly yes, at planting — but the mycorrhizal inoculant must touch roots directly to work. The guide sequences each amendment.
Is uncharged biochar okay?
Ours is pre-charged, which matters — raw biochar can steal nutrients from soil for a season before it starts giving back.
Pairs well with
Why we grow it this way
Feed the soil, not just the plant
Healthy soil is a living system, and these six amendments build it: pre-charged biochar for permanent carbon and microbial habitat, worm castings for biology, glacial rock dust for trace minerals, kelp meal for growth hormones, neem cake for pest suppression, and a mycorrhizal inoculant to wire roots into the whole network.
Enough to enrich 50–100 sq ft of beds, each in a labeled bag with rates and timing. The synergy compounds year over year.
Want the why behind each one? The soil-health guide breaks it down.
What growers say
My beds transformed
Second season using it and the soil is darker, spongier, and full of worms. The biochar being pre-charged is the detail that matters.
Good bundle, follow the guide
Convenient to get all six labeled with rates. Learned to keep the inoculant near the roots and skip the synthetic feed.