Therm-O-Rock Super Coarse Horticultural Vermiculite | 4cu ft - Super Coarse (36/PL) - OMRI Listed

OMRI Listed Super Coarse Vermiculite Soil Conditioner, 4cu ft

Its ability to retain both air and water makes vermiculite ideal for conditioning container soils.

Vermiculite can also be used for seed germination, bulb storage, and flower arranging. This 4cu ft bag is OMRI Listed and ships 36 per pallet.

Key Features & Benefits

• Accordion-like particle structure — retains water while improving aeration
• Prolongs nutrient release — amends soil over time
• Ideal for conditioning container soils — retains both air and water
• OMRI Listed — approved for organic production

Who Should Use Therm-O-Rock Super Coarse Horticultural Vermiculite

Growers conditioning container soils, or handling seed germination, bulb storage, or flower arranging, who want a super coarse vermiculite will find this grade suited to those uses.

About Therm-O-Rock

Therm-O-Rock processes horticultural vermiculite graded for soil conditioning, germination, and container gardening.

Frequently Asked Questions

Is this vermiculite OMRI Listed?

Yes, it is OMRI Listed.

What does vermiculite do in soil?

Retains water, improves aeration, and prolongs nutrient release.

What else can it be used for?

Seed germination, bulb storage, and flower arranging.

How is this packaged?

This 4cu ft bag ships 36 per pallet.