Zeolite Mineral Lava Rocks (Granular)
Arden Line Zeolite Granular — Natural Mineral Soil Amendment (Clinoptilolite, 1.4–4 mm)
Arden Line Zeolite Granular is a premium, mineral-based soil amendment that improves drainage, aeration, and nutrient retention in both indoor and outdoor growing environments. Sourced and processed 100% in the United States, it's ideal for growers who value quality, sustainability, and performance.
Zeolite is a naturally porous mineral that absorbs excess moisture while slowly releasing nutrients back into the soil. This helps prevent overwatering, reduces soil compaction, and supports healthy root development over time. With a naturally high pH of approximately 8.5, it is compatible with a wide range of plants and soil blends.
Key Benefits
- Improves soil drainage and airflow
- Retains nutrients and moisture for steady plant growth
- Supports stronger, healthier root systems
- Helps reduce odors in soil and containers
- Long-lasting mineral that does not break down
- 100% natural, eco-friendly, and sustainably sourced
- Plastic-free packaging, with no synthetic additives, fillers, or chemicals
Common Uses
- Succulents and cactus
- Bonsai trees and training pots
- Orchids and houseplants
- Herbs, flowers, shrubs, and roses
- Vegetable gardens, raised beds, and planters
- Aquarium filter media and decorative use
At a Glance
- What it is: Natural zeolite (clinoptilolite) soil amendment, granular grade
- Particle size: 1.4–4 mm
- Best for: Potting mixes, succulents, container plants, and raised beds
- How it works: Holds water and nutrients in the root zone and releases them slowly
- pH: Approximately 8.5
- Sizes: 6, 12, 18, and 24 lb
- Origin: 100% sourced and processed in the USA
Frequently Asked Questions
What does granular zeolite do for soil?
Its fine, porous particles blend into soil and hold water and nutrients in the root zone, releasing them slowly — improving drainage and aeration while reducing watering and fertilizer runoff.
How much should I use?
Blend in at about 5–10% of soil or potting-mix volume, or roughly 1–2 lb per 10 square feet in garden beds.
Does it break down over time?
No. It is an inert mineral that does not decompose, so one application keeps working for years.
Granular or Regular — which do I need?
Granular (1.4–4 mm) blends easily into potting soil and container mixes; Regular (3–6 mm) is coarser, better for drainage layers and bonsai.
Can it be used as aquarium filter media?
Yes. Its natural adsorption makes it suitable for aquarium filtration and decorative use.