PVP Industries Super Coarse Horticultural Perlite | 4cu ft - Super Coarse - OMRI Listed

OMRI Listed Perlite for Maximum Aeration, Super Coarse

Hydroponic substrates and high-drainage media need a mineral additive with enough particle size to keep air moving through the root zone, rather than a fine grade that packs down and slows drainage. PVP Industries Super Coarse Horticultural Perlite is graded specifically for that job, sized larger than PVP's coarse and medium grades to maximize air-filled pore space.

This 4cu ft bag is OMRI Listed and suited to hydroponic substrates and other high-drainage applications where strong aeration matters most.

Key Features & Benefits

• OMRI Listed — approved for use in certified organic production.
• Super Coarse Grade — the largest particle size in PVP's perlite line, maximizing aeration for hydroponic substrates.
• Clean, Sterile, and pH Neutral — won't alter the chemistry of the growing media it's mixed into.
• Non-Flammable and Non-Toxic — safe to store and handle without special precautions.
• Helps Anchor Young Roots — supports early root establishment as seedlings and cuttings get established.

Who Should Use PVP Industries Super Coarse Horticultural Perlite

Hydroponic growers who need maximum aeration and drainage, along with an OMRI Listed perlite that anchors young roots, will find this super coarse grade suited to that use.

About PVP Industries

PVP Industries has manufactured mineral-based growing media since 1984 from a 20-acre facility in North Bloomfield, Ohio, processing and grading horticultural perlite alongside its vermiculite lines for soil mixes, hydroponics, and container gardening.

Frequently Asked Questions

Is this perlite OMRI Listed?

Yes, it is OMRI Listed, which confirms it meets the standards required for certified organic production. That makes it an option for growers maintaining organic certification on their operation.

What is super coarse grade perlite used for?

It's excellent as a substrate for hydroponics, where its large particle size keeps air moving through the root zone under frequent irrigation. That same drainage also suits raised beds and other high-flow container mixes.

Is perlite safe to handle?

Yes, it is clean, sterile, non-flammable, and non-toxic, so it can be handled and stored without special precautions. It also won't alter the pH of growing media it's mixed into.

How long does this perlite last in growing media?

It lasts indefinitely, since perlite is an inert volcanic mineral that doesn't decay, compost, or attract pests the way organic amendments can. That stability is part of why it's used across so many different growing-media blends.

What size is this bag?

This listing is a 4cu ft bag. Confirm the exact grade printed on the bag matches what your growing system calls for, since perlite grades aren't interchangeable in every application.