ORGANIC COARSE VERMICULITE – GRADE 3 HORTICULTURAL GROWING MEDIUM

Improve soil structure, boost germination, and enhance moisture control with Organic Coarse Vermiculite Grade 3, a premium horticultural-grade medium designed for balanced aeration and water retention. With particle sizes up to 4 mm, this coarse/medium grade resists compaction while maintaining consistent moisture—ideal for healthy roots, strong seedlings, and reliable mushroom cultivation.

Suitable for indoor plants, outdoor garden beds, propagation trays, and specialty growing projects.

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KEY BENEFITS:

✓ Improves Soil Aeration & Drainage – Prevents waterlogging

✓ Holds Moisture Steadily – Consistent root zone conditions

✓ Promotes Faster Germination – Stronger seedling roots

✓ Perfect Particle Size – Ideal for seed starting & cuttings

✓ Mushroom Substrate Ready – Works for PF Tek, monotubs, oysters

✓ Lightweight & Easy to Blend – Simple incorporation into mixes

✓ 100% Organic & Chemical-Free – Asbestos-free, sterile

✓ Safe for All Plants – Vegetables, fruits, houseplants, terrariums

PERFECT FOR:

• Mushroom growing (PF Tek, monotubs, oyster, shiitake, lion's mane)

• Seed starting & propagation trays

• Garden beds & raised beds

• Lawns & soil conditioning

• Potting mixes & container plants

• Indoor & outdoor growing projects

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PRODUCT DETAILS:

Grade: 3 (Coarse / Medium)

Particle Size: Up to 4 mm (5/32")

Density: 4.5–5.5 lbs per cubic foot

Material: 100% Organic Expanded Vermiculite

Condition: Clean, Sterile & Asbestos-Free

Use: Indoor & Outdoor

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AVAILABLE SIZES:

1 QT – Seed cups & small projects

3 QT – Propagation & repotting

5 QT – Garden beds & soil mixes

15 QT – Mushroom growers & nurseries

30 QT – Bulk orders & greenhouses

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SAFETY INFORMATION:

• Light dust may occur — wearing a mask recommended

• Avoid eye contact; use protective eyewear

• Keep away from children and pets

• Store sealed in a cool, dry place

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WHY CHOOSE GRADE 3 VERMICULITE:

Grade 3 vermiculite offers the ideal balance of airflow and moisture retention, making it a versatile choice for seed starting, soil conditioning, and mushroom cultivation where consistency and performance matter.

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