Complete Soil Solutions, Rooted in Sustainability

Featured Products

Organic Mushroom Compost 10lbs
$2.00

Organic Mushroom Compost

Healthy gardens begin with healthy soil. Our Organic Mushroom Compost is produced from premium spent mushroom substrate that has been carefully composted and aged into a nutrient-rich organic soil amendment. Rich in organic matter and naturally occurring minerals, it improves soil structure, increases moisture retention, and creates an ideal environment for strong, healthy root development.

Perfect for vegetable gardens, flower beds, landscapes, lawns, fruit trees, and container gardens, our mushroom compost helps revitalize depleted soils while supporting long-term plant health. Whether you're establishing new plantings or improving existing beds, Farm Mycology Mushroom Compost provides a sustainable, environmentally responsible solution for growing healthier plants and more productive gardens.

Benefits

  • Improves soil structure and aeration

  • Increases moisture retention while promoting proper drainage

  • Adds valuable organic matter to depleted soils

  • Encourages healthy root growth

  • Supports beneficial soil biology

  • Ideal for gardens, landscapes, raised beds, lawns, and containers

  • Sustainably produced from recycled mushroom substrate

Product Information

Ingredients: 100% composted spent mushroom substrate

Organic Matter: Rich in naturally occurring organic material and minerals

Recommended Uses: Vegetable gardens, flower beds, raised beds, trees, shrubs, lawns, and container plants

Application: Use as a soil amendment or top dressing

Environmentally Friendly: Produced through sustainable recycling of mushroom-growing materials 100% organic.

Application Instructions

Garden Beds & Landscapes
Incorporate 1–3 inches into the top 4–6 inches of existing soil before planting.

Raised Beds
Blend with existing soil or growing media to improve fertility, water retention, and soil structure.

Containers & Potting Mixes
Mix approximately 20–30% mushroom compost with quality potting soil before planting.

Established Plants
Apply a 1–2 inch layer around plants as a top dressing, keeping compost a few inches away from stems and trunks. Water thoroughly after application.

Rooted in Sustainability. Growing Better Soil for Every Season.

Coarse Grade 4 Vermiculite 8qts
$7.00

Coarse Grade 4 Vermiculite

Premium Grade 4 coarse vermiculite is a lightweight, expanded mineral prized for its exceptional water-holding capacity and excellent aeration. Its large particle size helps create air pockets within growing media, promoting healthy root development while reducing soil compaction.

Ideal for seed starting, potting mixes, raised beds, container gardens, and specialty horticultural applications, Grade 4 vermiculite improves moisture retention without becoming waterlogged. It can also be used as a top dressing for seed germination, in propagation mixes, and for storing bulbs and tubers.

Features:

  • Coarse Grade 4 particle size

  • Increases water retention

  • Improves aeration and drainage

  • Helps reduce soil compaction

  • pH neutral and sterile

  • Lightweight and easy to mix

  • Suitable for indoor and outdoor growing

Common Uses:

  • Potting soil amendments

  • Seed starting and propagation

  • Houseplants and tropical plants

  • Vegetable and herb gardens

  • Raised beds

  • Bulb and tuber storage

  • Terrariums and vivariums

Ingredients: 100% Expanded Grade 4 Vermiculite

Coarse Perlite 8 Qts
$7.00

Perlite is a lightweight, amorphous volcanic glass that expands when rapidly heated to produce a white, porous material. It is widely used in horticulture, mushroom cultivation, and hydroponics because of its excellent water retention, aeration, and drainage properties.

Origin and processing

  • Source: Perlite is a natural volcanic glass high in silica.

  • Expansion: Raw perlite is crushed and heated to about 1,400–1,800°F (760–980°C). The trapped water in the glass vaporizes, causing the particles to "pop" and expand up to 4–20 times their original volume. The expanded product is airy and has a popcorn-like structure.

  • Grades: Available in multiple grades (fine, medium, coarse) determined by particle size and intended use.

Physical properties

  • Appearance: White, lightweight, and brittle with a granular, porous structure.

  • Bulk density: Very low (typically 30–150 kg/m³ depending on grade).

  • pH: Generally neutral to slightly alkaline (around 7–8.5).

  • Inertness: Chemically inert and sterile in its expanded form; does not decompose.

Horticultural uses

  • Soil amendment: Improves soil structure by increasing aeration and drainage while retaining some moisture and nutrients near roots.

  • Potting mixes: Commonly mixed with peat, coco coir, or compost to create well-draining potting substrates.

  • Seed starting and cuttings: Fine-grade perlite provides good moisture retention and oxygenation for root development.

  • Hydroponics and soilless culture: Used alone or blended as a soilless medium for containerized growing.

Mushroom cultivation

  • Sterile barrier: Used in the moisture reservoir of mushroom grow boxes or monotubs to maintain high humidity.

  • Substrate component: Mixed into bulk substrates or casing layers to improve aeration and prevent compaction.

Practical considerations

  • Dust: Dry perlite can generate fine dust; wetting before use or wearing a dust mask helps reduce inhalation risk.

  • Handling: Lightweight and easy to dispense; not a source of nutrients—works by modifying physical properties of the growing medium.

  • Disposal: Inert and safe for disposal in regular waste streams; can also be reused if kept clean and free of pathogens.

Coco Coir (Hydrated 60%) 10qts
$3.00

Ready-to-use hydrated coco coir is a renewable growing medium that provides excellent moisture retention while maintaining outstanding drainage and aeration. Perfect for container gardening and hydroponic growing.

Features:

  • Ready to use

  • Excellent moisture retention

  • Superior aeration

  • Renewable resource

  • Low EC

  • pH balanced

Common Uses:

  • Potting mixes

  • Hydroponics

  • Seed starting

  • Raised beds

  • Tropical plants

Ingredients: 100% Washed Coconut Coir

Rooted in Sustainability. Transforming Organic Waste into Healthy Soil.

Close-up of someone's hand holding dark, moist soil with small roots and particles visible.

At Farm Mycology, we believe healthy plants begin with healthy soil. Our mission is to transform spent mushroom substrate into nutrient-rich compost while providing growers, landscapers, farmers, and homeowners with high-quality soil products they can trust. By giving organic materials a second life, we're helping build healthier soils and supporting more sustainable growing practices for every project, large or small.

As we continue to grow, we're expanding beyond compost to offer a complete line of premium soil products, including custom soil blends, compost, mulch, soil amendments, and other essentials for gardens, farms, and landscapes. Whether you're improving a backyard garden or managing large-scale agricultural operations, Farm Mycology is committed to delivering reliable products, exceptional service, and sustainable solutions that help your soil—and everything growing in it—thrive.

Close-up of a hand with red nail polish touching a pile of dark soil.
Small green seedlings sprouting from dark, moist soil with rocks and small twigs.