• Bulk worm castings supersack
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Bulk Worm Castings

Bulk Worm Castings

$625.00 USD
$625.00 USD
Sale Sold out

Freight bulk worm castings for wholesale buyers, growers, and landscapers. One supersack holds about 2 cubic yards (roughly 2,250 lb) of pure OMRI Listed Sweet Leaf castings in an industrial woven polypropylene bag with four lifting loops.

$625 per supersack. Freight is calculated at checkout based on your delivery address, or contact info@sweetleafsoil.com to arrange delivery to your dock or yard.

✓ OMRI Listed  ·  Made in Wisconsin  ·  Lab-Tested

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★★★★★  

OMRI Listed Organic  ·  Made in Wisconsin  ·  Lab-Tested

Real Plants, Real Results

  • ★★★★★

    My pothos has never looked this happy. Roots are thick and the leaves are huge since I switched to Sweet Leaf castings. Real results, no hype.

    Dana K.

  • ★★★★★

    I was skeptical but the proof is in the plants. Every single one perked up within two weeks. This is the good stuff.

    Marcus T.

  • ★★★★★

    Bought the 2 lb bag to try it out and immediately ordered the 5 lb. My snake plant pushed out two new leaves this month. Worth every penny.

    Priya S.

  • ★★★★★

    Counter-safe and pet-friendly. My cats are nosy and I don't worry at all with Sweet Leaf.

    Jordan L.

  • ★★★★★

    I've tried a dozen soil amendments. Sweet Leaf castings are the only ones that made a visible difference in under a month.

    Amara W.

Cheap compost vs. Sweet Leaf castings

Drag to see the difference. Sweet Leaf worm castings are slow-release, odor-free, and packed with billions of living microbes. Not a bag of mystery mulch.

Cheap compost vs. Sweet Leaf castings
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What's inside

Pure Worm Castings

Billions of Live Microbes

Humic & Fulvic Acids

Trace Minerals

Billions of living microbes

Billions of living microbes

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

Why Sweet Leaf?

  • Slow-Release Nutrition

    Worm castings feed your plants gently over weeks. No nutrient burn, no guesswork. Just steady, healthy growth.

  • Odor-Free & Safe

    No ammonia. No manure smell. Sweet Leaf castings are safe for indoor use, around kids, and in any growing environment.

  • Soil Structure Builder

    Better drainage, better aeration, better water retention. The living microbes rebuild your soil's ecosystem with every application.
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Questions, answered

How much do I use?

Mix 1 part Sweet Leaf castings to 4 parts potting soil, or top-dress with a quarter-inch layer and water in. For existing plants, apply 1 to 2 tablespoons around the drip line monthly.

Can I use it on edibles?

Yes. Sweet Leaf castings are OMRI Listed organic and safe for vegetables, herbs, fruit, and edible plants of all kinds. Free of synthetic chemicals.

Is there a smell?

No. Unlike raw manure or compost, properly processed worm castings are virtually odorless. You can use them indoors without any unpleasant smell.

How long does a bag last?

A 2 lb bag treats roughly 8 to 12 houseplants (top-dress method) or makes about 4 quarts of amended soil mix. The 5 lb bag extends that 2.5 times over. Bags keep for up to 2 years stored sealed and cool.