The living soil your houseplants actually notice.

The living soil your houseplants actually notice.

Pure Wisconsin worm castings. OMRI Listed, odor-free, and gentle enough they won't burn your roots.

Shop the castings
OMRI Listed Organic · Made in Wisconsin · Lab-Tested

Cheap compost vs. Sweet Leaf castings

100% pure worm castings. No manure, no sand, no fillers. Feeds the soil food web. Won't burn roots. Safe around pets and kids.

Cheap compost vs. Sweet Leaf castings
Before
After
Billions of living microbes

Billions of living microbes

Billions of living microbes in every bag. Odor-free, counter-safe, and gentle enough you can't overdo it.

What's inside

100% Worm Castings

Living Microbes

No Fillers or Manure

OMRI Organic

  • Living microbiology

    Billions of beneficial microbes in every bag.

  • Won't burn roots

    Gentle enough you can't overdo it.

  • 100% pure, no fillers

    No manure, no sand, no compost blends.

  • OMRI Listed organic

    Certified for organic use.

Trusted by growers

OMRI Listed

OMRI Listed

Certified organic input

Made in Wisconsin

Made in Wisconsin

Family worm farm

Lab-Tested

Every batch

Raised on our family farm in Wisconsin

Raised on our family farm in Wisconsin

Our worms turn clean organic feedstock into rich, screened castings. Tested, bagged, and freshness-dated on our Wisconsin farm.

Our story

#SweetLeafSoil

Questions, answered.

Will it burn my plants?

No. Castings are gentle; you can't overdo it.

Is it OMRI organic?

Yes, OMRI Listed.

Does it smell?

No. Odor-free and counter-safe.

Safe for pets & kids?

Yes.

How much do I use?

Top-dress or mix ~1 part castings to 4 parts soil.

How is this different from compost?

Pure worm castings. More microbial life, no fillers, screened fine.