HortGrow Coco & Perlite Blend Bag — 1.5cu ft — 70% Coco Pith / 30% Horticultural Perlite

Pre-Blended 70/30 Coco & Perlite for High-Frequency Irrigation

HortGrow Coco & Perlite Blend Bag delivers a pre-blended coco growing medium built for high-frequency irrigation and demanding indoor cultivation. The 70% coco pith / 30% horticultural perlite formulation combines coco's moisture retention and biological compatibility with perlite's drainage and aeration, giving roots both moisture and oxygen without the waterlogging risk that pure coco can carry under heavy irrigation.

The 70/30 ratio is a widely used, versatile starting point for coco growing media -- balancing enough moisture retention to carry plants between irrigations with the air porosity fast-growing crops need at the root zone.

Key Features & Benefits

• 70/30 Coco-Perlite Ratio: A widely used all-purpose aerated coco blend, giving enough moisture retention for steady hydration while the perlite creates air pockets for root-zone oxygen and fast drainage.
• Improved Root Zone Oxygenation: Perlite particles hold air spaces within the medium even when saturated, helping roots access oxygen right after irrigation.
• Faster Drainage for High-Frequency Irrigation: The perlite component speeds drainage compared to pure coco, suiting automated drip systems with frequent irrigation cycles.
• Washed & Buffered Coco Component: The coco portion is processed to help reduce excess sodium, potassium, and salts, so the perlite is not adding meaningful salt load of its own.
• Ready-to-Use Pre-Blended Format: No measuring or mixing required -- the 70/30 ratio is blended at the factory for consistent performance bag to bag.

Who Should Use This

Commercial indoor cultivators running automated drip irrigation with frequent cycles, and home growers who water often and want a pre-blended aerated option without measuring separate coco and perlite components.

Compatibility

Compatible with all hydroponic and organic nutrient programs. Flush with pH-adjusted water and check runoff EC before planting. Suitable for container growing, grow bag systems, and soilless drip setups, and compatible with beneficial bacteria and mycorrhizal inoculants.

Frequently Asked Questions

Why is 70/30 coco-perlite considered a good starting ratio?

At 30% perlite, there is enough aeration to help prevent waterlogging under frequent irrigation, while the 70% coco component still retains enough moisture for steady hydration between waterings. This balance suits a wide range of crops and container sizes.

Is this blend suitable for hand-watering?

Yes -- the 70/30 blend works with both automated drip irrigation and hand-watering. The perlite's drainage makes the medium more forgiving of occasional overwatering, while the coco component still carries moisture between waterings.

Does the perlite affect the pH or EC of my nutrient solution?

Quality horticultural perlite is chemically inert and pH neutral, so it contributes little to no EC or pH shift on its own. The coco component remains the main factor in starting EC, which is why HortGrow washes and buffers the coco during processing.

How does this compare to HortGrow's pure Coco Blend Bag?

The 90/10 Coco Blend Bag retains more moisture and suits lower-frequency irrigation or crops with higher water demand. This 70/30 Coco & Perlite Blend drains faster and suits high-frequency irrigation and crops that benefit from a free-draining medium.