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Rice Hulls (OMRI)

Rice Hulls (OMRI)

Regular price $5.99 CAD
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🌾 Sustainable Aeration & Drainage Amendment

Rice Hulls are a natural, biodegradable byproduct of rice milling that offer a powerful, eco-conscious way to improve your soil structure. Ideal for both houseplants and garden beds, rice hulls enhance aeration, drainage, and moisture management—while also contributing slow-release silica to promote stronger plant tissues! 


Why Choose Rice Hulls?

  • OMRI Listed – Safe for organic growing

  • Boosts Soil Aeration – Prevents compaction and encourages root development

  • Improves Drainage – Helps water pass freely, reducing rot risk

  • Adds Water-Holding Capacity – Maintains just the right moisture balance

  • High in Silica – Supports plant cell strength and resilience

  • Decomposes Slowly – Enriches soil over time with organic matter

  • Pest-Reducing Top Dressing – Suppresses fungus gnats when used on the soil surface

  • Sustainable Alternative to Perlite – Made from agricultural waste instead of mined resources


Application Rates:

In Soil Mixes

Add to your potting blend to increase porosity and oxygen flow. Most well-balanced mixes aim for ~30% aeration by volume. Example:

Aroid Mix: 30% orchid bark, 30% coco coir, 20% rice hulls, 10% charcoal, 10% worm castings.

As a Top Dressing

Sprinkle ¼–½ inch layer on the surface of your soil to:

  • Discourage fungus gnats

  • Minimize algae growth

  • Improve evaporation from the topsoil

As Mulch in Garden Beds

Use in protected outdoor areas where wind and heavy rain won’t displace the hulls.


Measurements & Weight

  • 1 cubic foot ≈ 8.74 lbs

  • 1 gallon ≈ slightly over 1 lb

Use this as a guide to calculate how much you need for bulk mixes or container gardening.


Fun Fact!

Rice hulls are also used as insulation in eco-construction and biochar production—so when you add them to your mix, you’re joining a long tradition of sustainable innovation!

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Customer Reviews

Based on 2 reviews
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E
Emperatriz Aprecio VIG (Oct/06/2025)

I love to use it for my plants

M
Mary Perron VIG (MAY 7 2025)

great for clay soil