Minute Soil by Mountain Valley Seed Company - 40mm Coco Coir Disc Grow Medium (30 Pucks)

Meet Minute Soil, a lightweight, peat-free grow medium designed for modern indoor gardening. Each bag features 40 mm Minute Soil discs crafted from pure, untreated coconut coir. To activate, simply add about 1/3 cup of water per disc and watch the material rehydrate into a fluffy, airy growing medium. The discs expand dramatically, becoming ready-to-use soil that can support a range of planting tasks.

Compact, powerful, and easy to use

Key details you can plan around: the discs can expand up to 15 times their dry size, yielding roughly 3/4 cup of soil per disc. When you hydrate the entire bag, you’ll have about 5.5 quarts of soil ready for pots, trays, or garden beds. This combination of compact packaging and generous final volume makes it a practical choice for growers who value tidy storage and predictable setup times.

Minute Soil is pure, untreated coconut coir, a renewable alternative to peat. It’s OMRI-listed for organic production, which helps align your growing projects with organic practices. The discs are lightweight, compact, and quick to rehydrate—no heavy bags of damp soil to haul. In addition, the product is peat-free and eco-friendly, and it accepts your preferred fertilizers, giving you the freedom to tailor nutrition to your plants.

• Convenient and clean: lightweight, compact, and quick to rehydrate with water; peat-free and eco-friendly.
• Versatile application: use as a standalone grow medium or mix into garden soil to improve water holding and aeration.

In terms of growth potential, Minute Soil is designed to improve water holding capacity and aeration, which can support faster, stronger growth and healthier roots. While results depend on your exact setup and care routine, many indoor and outdoor growers appreciate the predictable texture and moisture balance coco coir provides.

• Better growth potential: improved water management and aeration can help roots develop more vigorously.
• Broad range of uses: ideal for indoor seed starts, garden soil amendments, flowers, herbs, houseplants, vegetables, microgreens, wheatgrass, and more.

Practical tips for beginners and pros alike: start with the 40 mm discs, hydrate with 1/3 cup water per disc, and allow full expansion. For larger projects, hydrate the full bag to achieve about 5.5 quarts and distribute as needed. Pair Minute Soil with your preferred schedule and fertilizers to create a customized growing plan that fits your space and plants.

Minute Soil offers a modern approach to a traditional task: creating a clean, scalable growing medium from coconut fiber. It’s designed to support a range of gardening tasks while keeping storage tidy and setup simple, so you can focus on planting, watching growth unfold, and enjoying the process.