Root Rocks – NXT GEN 9L
$35.00 inc. GST
The evolution your plants have been waiting for.
As your plants mature, their root systems demand more air, more structure and a more dynamic environment. Root Rocks NXT GEN is engineered for teen plants and beyond — the phase where roots shift from delicate and cosy to exploratory, strong, and hungry for space.
Built on our popular Root Rocks base mix, NXT GEN increases aeration, boosts drainage and reduces warmth-holding materials so older plants stay balanced, stable and ready for their next growth surge.
Full product description
Root Rocks NXT GEN – Advanced Mineral Substrate
Airy, clean, and engineered for stronger, more mature root growth.
Root Rocks NXT GEN is a premium mineral substrate and soil alternative designed to deliver the ideal air-to-water ratio for healthy, resilient root systems. Engineered for modern indoor growing, it provides superior airflow, fast drainage and long-term structural stability.
Perfect for a wide range of plants — including Alocasia, Anthuriums, Hoyas, Bonsai, Cacti and Succulents — Root Rocks NXT GEN supports stronger root development, reduces maintenance and significantly lowers the risk of root rot. It is also ideal for semi-hydro and mineral-based growing systems.
Key Benefits
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Allows more frequent watering than traditional soil
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Reduces day-to-day plant care time
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Minimises pest issues such as fungus gnats
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Encourages faster, stronger and more consistent growth
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Significantly lowers the risk of root rot
What Root Rocks NXT GEN Is Made Of
Root Rocks NXT GEN is a complete soil-free growing medium made from premium, stone-like mineral granules. Each component plays a specific role in creating a balanced, breathable and long-lasting root environment.
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Pumice – increases aeration and improves drainage
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Zeolites – volcanic minerals that detoxify the root zone and stabilise pH
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Fluval Stratum – provides gentle, slow-release nutrients
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Lava rock – adds structure, durability and long-term stability
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Silica & quartz variants – improve airflow, strength and root resilience
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Beneficial microbes – enhance nutrient availability and root health
This free-draining mineral structure is ideal for plants that dislike compacted soil — particularly Aroids such as Alocasias — and is equally effective for semi-hydro growing.
The Power of Zeolites
Zeolites are a key feature of Root Rocks NXT GEN. These naturally occurring volcanic minerals bind and neutralise harmful heavy metals such as lead and nickel, helping keep the root zone clean and balanced. Zeolites also retain moisture without causing waterlogging and support long-term pH stability, creating optimal conditions for healthy root growth.
Pumice
Pumice is a foundational element in Root Rocks NXT GEN. This lightweight volcanic stone is filled with microscopic pores that dramatically improve airflow around roots. It prevents compaction, keeps the mix open and supports consistent oxygen exchange — all essential for strong, healthy root systems. Pumice also absorbs and releases moisture gradually, maintaining balance without creating soggy conditions.
Fluval Stratum
Fluval Stratum provides a reliable nutritional base within Root Rocks NXT GEN. Originally developed for planted aquariums, this volcanic substrate releases nutrients slowly and gently, supporting steady root and foliage growth without nutrient spikes.
When combined with mineral components such as pumice, lava rock and zeolite, Fluval Stratum delivers baseline nutrition while the surrounding structure controls airflow, drainage and moisture retention. This makes Root Rocks NXT GEN ideal for plants transitioning from organic soil to mineral or semi-hydro systems.
Lava Rock
Lava rock adds long-term strength and structure to Root Rocks NXT GEN. Formed from cooled volcanic lava, its rugged, porous surface provides natural anchoring points for roots while maintaining excellent drainage and airflow. Lava rock resists breakdown far better than organic materials and offers extensive surface area for beneficial microbes to colonise, keeping the mix stable and effective for years.
Silica & Quartz Variants
Silica and quartz variants contribute purity, strength and structural stability to Root Rocks NXT GEN. These hard, inert minerals prevent compaction while maintaining free drainage. Quartz creates micro-channels that improve airflow around roots, while silica supports stronger root development and overall plant resilience. Neither mineral alters water chemistry, ensuring a consistent growing environment.
Beneficial Microbes
Root Rocks NXT GEN contains a carefully selected blend of beneficial microbes that enhance nutrient uptake and root efficiency. These microbes help convert nutrients into plant-available forms, support stronger root systems and improve overall plant resilience — creating a healthier, more balanced root zone.
Fertilising With Root Rocks NXT GEN
While Fluval Stratum provides gentle, slow-release nutrition, ongoing fertilising is still required.
For best results, we recommend GT Foliage Focus, using a “little and often” approach to maintain steady, controlled growth.
How to Use Root Rocks NXT GEN
25% Method – Drainage Boost
Add a layer to the bottom of pots to improve drainage, especially in decorative planters with limited drainage holes.
50% Method – Pest Barrier
Use as a top or mid-layer to discourage fungus gnats and increase airflow. Ideal for growers transitioning from soil to mineral or semi-hydro systems.
100% Method – Full Mineral Growing
Remove all organic matter and grow entirely in Root Rocks NXT GEN.
For this method, we recommend a clear vessel without drainage, with a base layer of LECA to easily monitor water levels.
Versatile and Easy to Use
Root Rocks NXT GEN can also be blended into traditional potting mixes to improve aeration, drainage and structure. Suitable for beginners, hobby growers and serious plant collectors alike.
Why Plant Lovers Choose Root Rocks NXT GEN
Root Rocks NXT GEN is designed for growers who want consistent, professional-level results. Its premium mineral composition maintains structure long-term, reduces disease risk and provides stable, healthy conditions for advanced root development.
Long-Lasting & Sustainable
Unlike organic soils that break down and compact over time, Root Rocks NXT GEN remains structurally stable for years — reducing repotting frequency, waste and overall plant maintenance.