Vermiculite (3.5 Cu Ft Bag) - Grow Organic Vermiculite (3.5 Cu Ft Bag) Growing
Vermiculite (3.5 Cu Ft Bag) - Grow Organic Vermiculite (3.5 Cu Ft Bag) Growing
Item Number: PSO352

Vermiculite (3.5 Cu Ft Bag)

Improves Water Retention and Nutrient Exchange

Listed for Use in Organic Agriculture by the Organic Materials Review Institute

Regular price
In Stock
Sale price
Ships from Northern CA.
Quantity Discounts for Vermiculite (3.5 Cu Ft Bag)
Buy 10 for $40.49 each
Buy 30 for $35.99 each
Shipping calculated at checkout.

Quantity must be 1 or more


Vermiculite is a naturally-occurring mineral that is also used in potting mixes. It is made from mica rock which is puffed under pressure and heat. Vermiculite is an excellent soil amendment because it helps to aerate the soil and improve drainage.

Additionally, vermiculite can help to hold moisture and nutrients in the soil, making it an ideal growing medium for plants. For these reasons, vermiculite is often used in potting mixes and seed-starting mixes.

Our medium grade vermiculite is a popular choice for many applications, as it is not too abrasive and can be easily worked with.

See our companion guide for vermiculite as a soil amendment in the resource center. We also have a large selection of other soil amendments for sale.


  • Improves Nutrient Uptake
  • Improves Water Holding Capacity
  • Use for Propagation
  • Use for Seed Starting


Organic Status :
Approved for Use in Certified Organic Agriculture
Organic Certifier: OMRI

Useful Information


Cannot be combined with other items in a package, due either to its size or manufacturer packaging.

Shipping Weight: 33.49 lb

Dimensions: 35.0"L x 20.5"W x 10.5"H


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