Reviewed by Robert S.
Verified Buyer
I recommend this product
New Soil
It is always part of my initial soil building
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PBH04
$19.80
Par Boiled Rice Hulls by the bale or truckload. PBH Brand Approved for Organic Use
Studies have proven that rice hulls can efficiently replace perlite in your potting soil mixes and is much better for the environment.
We have independently heavy metal tested the contents and will only work with PBH for our rice hulls because of how clean they have tested. Beware of cheap rice hulls potentially full of heavy metals.
Parboiled rice hulls are produced by steaming and drying rice hulls after the milling process. This results in a lightweight and consistent product that is free of viable weed and/or rice seed
50lb Bag = About 7 Cubic Feet Once Expanded
Rice Hulls weigh about 1 lb per gallon.
The 20lb Bags weight may vary between 20-26lbs.
Check out this greenhouse study on Rice
Hulls: http://www.gpnmag.com/sites/default/files/09_Grower101_GPN0913%20FINAL.pdf
We recommend using around 30% aeration. If going for long term no-till we suggest using half Rice Hulls and Half Pumice or Lava Rock.
Rice Hulls - Replacement For Perlite
1 Cubic Foot Bag:
Dimensions: 22.25" x 14" x 5.25"
Weight: 8.0 lbs
20 Pound Bag:
Dimensions: 21" x 13.5" x 12"
Weight: 21.0 lbs
50 Pound Bag:
Dimensions: 21.5" x 13" x 29"
Weight: 51.0 lbs
It is always part of my initial soil building
Added this to poor draining soil and was left with straight mud, worse than what I started with:
"A Parboiled Rice Hulls (PBH) disadvantage that cannot be overcome is their shape. PBH resemble the shape of a tiny canoe with a long slender pore shape. If a growing mix’s other components are poor quality, such as a peat with a lot of fines, these fines can fill the PBH pore space and actually hinder drainage and increase the water holding capacity of a mix.
A growing mix is only as a good as its components. PBH cannot work independently of the other mix components. The highest quality PBH are no match for a mix composed of poor quality peat, bark fines and other materials that are commonly available. Quality raw materials at their earliest stages lay the foundation for growing success."
I love the clean look of the rice hulls as mulch. It works perfectly at keeping the soil moist underneath and my worms love it. It’s also very appealing to look at in my garden!
they were very compacted. it is so much for the money. great way to add to soil. then break down and become silica for plants
A little Silica with aeration. Love rice hulls & they last longer than i thought!