Professors Nutrients Coco + Perlite 50L (Washed & Buffered)

What is Professor’s Coco + Perlite made of?

It’s a 70/30 blend of coco coir and perlite, packed in a 50L bag. The coco provides water retention and structure, while perlite boosts drainage and root-zone aeration.

Is this mix ready to use out of the bag?

Yes—just open the bag, pre-wet the mix evenly, and fill your containers. No rinsing is required, though a light flush can help with salt-sensitive plants or seedlings.

What pH range should I aim for with this medium?

Target a pH between 5.8 and 6.2 to keep nutrients available and avoid lockout issues. Most coco growers stay in this range for optimal results.

Do I need to feed nutrients when using Coco + Perlite?

Yes—this is an inert medium with no added nutrients. Use a balanced feeding schedule, and consider Cal-Mag supplements or coco-specific nutrients to avoid deficiencies.

Can I amend the mix with organics like worm castings or compost?

You can, especially if building a living soil. Keep the structure airy and avoid overloading with dense compost—coco/perlite excels when it's light and breathable.

What types of plants thrive in Coco + Perlite?

Fast-growing, high-demand plants love this mix—think veggies, seedlings, houseplants, and anything that dislikes soggy roots. It supports vigorous growth with the right feeding.

Is this medium suitable for hydroponics and containers?

Yes. It works great in hydro setups, fabric pots, autopots, and containers. Just dial in your watering and feeding for the system you're using.

How should I water plants in coco/perlite?

Keep it consistently moist—daily watering is common, especially in warm conditions. Avoid letting it fully dry, and aim for light runoff to prevent salt buildup.

Can I reuse Coco + Perlite after a grow?

Yes, but you’ll need to flush out old salts, remove roots, and re-buffer with a Cal-Mag source. Avoid reuse if there were serious pest or disease issues.

Does this mix compact or break down over time?

It holds structure better than straight coco thanks to the perlite. However, over multiple uses, reconditioning helps maintain optimal texture and performance.

Are pests or mess an issue with this mix?

It can attract fungus gnats if kept too moist. Use good airflow and sticky traps. Coco runoff may stain surfaces, and perlite dust can irritate—wet the mix to reduce dust.

How should I store an opened bag?

Keep it sealed, dry, and out of direct sunlight. Moisture and contamination are the main risks—store it like you would a bag of potting mix.

Why choose Coco + Perlite over potting soil or bricks?

For better control and consistency. Unlike bricks, this mix is clean and pre-buffered. Compared to soil, it offers more oxygen, better drainage, and precision feeding.

What are common mistakes to avoid with coco/perlite?

Treating it like soil—letting it dry out, underfeeding, or ignoring salt buildup. Stay consistent with watering, feed regularly, and flush as needed to keep plants healthy.