Black Gold Perlite | 8qt - 240/PL

Lightweight Volcanic Perlite for Drainage and Aeration, 8qt

A growing medium that stays too dense limits root oxygen and slows drainage after every watering, which shows up as slow growth even when nutrition and light are dialed in. Black Gold Perlite is expanded volcanic rock, a natural mineral amendment that opens up any soil or soilless mix to improve both drainage and aeration.

This 8qt bag ships 240 per pallet and blends into any soil or soilless mix as a lightweight amendment rather than a standalone growing medium.

Key Features & Benefits

• Natural Mineral — expanded volcanic rock, lightweight by design.
• Improves Drainage — reduces the risk of waterlogged growing media.
• Improves Aeration — creates air pockets that support root health.
• Universal Amendment — blends into any growing medium.

Who Should Use Black Gold Perlite

This perlite suits gardeners amending any soil or soilless growing medium who want better drainage and aeration without changing the mix's core composition.

About Black Gold

Sun Gro Horticulture's Black Gold line includes straight mineral amendments like Perlite alongside its blended potting mixes, drawing on the same production base as the company's professional products.

Frequently Asked Questions

What is Black Gold Perlite made from?

Expanded volcanic rock, processed into a lightweight, porous mineral. That expansion process is what creates the air pockets perlite is used for.

What does perlite improve in a growing medium?

Drainage and aeration, in any soil or soilless mix it's blended into. It doesn't add nutrients, so it's used alongside a fertilized base mix rather than in place of one.

Is this perlite lightweight?

Yes, expansion during processing makes it lightweight relative to its volume, which is part of why it doesn't compact a mix over time. That same lightness is why it can float to the surface if a mix is overwatered.

What size does this bag come in?

This bag holds 8qt and ships 240 per pallet. That size is enough for blending into multiple batches of soil or soilless mix.