Vermiculite Medium Grade Horticultural Vermiculite - 4 Cu Ft Bag

Loosen Media and Hold Moisture for Roots - 4 Cu Ft Bag

Compacted media restricts roots and dries unevenly. Medium grade horticultural vermiculite keeps media from clumping, holds moisture and nutrients for later use, and leaves room for air around the roots. The material is listed by the distributor as clean, odorless and completely sterile.

The 4 cu ft bag suits growers who mix their own media for small-area gardens or hydroponic systems. It gives a regular indoor grower enough material for repeated batches without buying in pallet volume.

Key Features & Benefits

• Medium grade particles — loosen media so roots can develop more easily.
• Moisture and nutrient retention — holds water and nutrients for the plant to use later.
• Root zone buffering — helps steady conditions around the roots.
• Sterile and odorless — reduces concern about introducing pathogens or smell to your grow space.
• OMRI listed and CDFA — per the distributor, relevant for growers following organic practices.

Who Should Use Vermiculite Medium Grade

Growers mixing custom media for small gardens, and hydroponic growers who blend vermiculite with perlite for drip or ebb-and-flow systems, will find it useful.

About Vermiculite Medium Grade Horticultural Vermiculite

This product is horticultural organic vermiculite sold as a single 4 cu ft bag. It ships at about 20 lb and measures 40 x 20 x 8 in. It does not ship ground.

Frequently Asked Questions

Q: What is vermiculite used for in cultivation?
A: It is a growing medium additive that holds moisture, nutrients and air. Growers mix it with soil, compost, peat or bark. It also works in hydroponic blends.

Q: Can I use it in hydroponic systems?
A: Yes. The distributor describes a 50/50 blend of vermiculite and perlite as popular for drip and ebb-and-flow systems.

Q: How does it differ from perlite?
A: Vermiculite generally retains more moisture and nutrients, while perlite mainly adds drainage and aeration. Many growers combine them to balance both.

Q: Is it sterile?
A: The distributor describes it as completely sterile, with no bacterial or fungal infections to worry about.

Q: Can it ship by ground?
A: No. The distributor states this product does not ship ground.

Q: What does medium grade mean?
A: It refers to the particle size of the vermiculite. Medium particles suit general-purpose media blends.