Vermiculite, Medium/Coarse Grade # 3 or 3A
Best soil amendment for gardeners seeking improved aeration and root health.
Elevate your gardening with PVP Industries' Medium/Coarse Grade Vermiculite. This 4 cubic foot bag is a versatile soil amendment, perfect for improving aeration and drainage in your growing mixes. It actively supports healthy root structure, promoting vigorous growth for both seed starting and potting applications. Lightweight and easy to handle, this vermiculite is suitable for traditional soil and soil-less hydroponic systems, offering a supplemental nutrient source. Ideal for greenhouses and general gardening, it enhances overall plant vitality.
$44.99
Owner Satisfaction
4.6
/ 5
Category Rank
516
/ 1247
#516 in Soil
Price vs Category Average
-11%
Below average
Volume
4..
/ cu ft
Who it's for
- Growers working with heavy, compacted clay soil
- Gardeners managing thirsty plants in containers or raised beds
- Seed starters seeking a sterile, pathogen-free germination environment
Who should skip it
- Owners of moisture-sensitive plants prone to root rot
- Landscapers designing permanent, long-term garden installations
- Budget-conscious gardeners avoiding premium-priced soil amendments
Performance breakdown
Aeration Efficiency
Coarse texture creates essential air pockets for robust root respiration.
Moisture Retention
Excellent water-holding capacity keeps growing media consistently hydrated.
Handling Ease
Lightweight composition makes bulk mixing and application effortless.
Versatility
Adapts seamlessly to both traditional soil and hydroponic setups.
Root Development
Provides the ideal structural support for rapid, healthy root expansion.
Nutrient Buffering
Reliably holds supplemental nutrients for steady plant uptake.
Key Specs
Volume
4 cu. ft.
Grade
# 3 or 3A
Material
Vermiculite
Texture
Medium/Coarse
Intended Application
Soil Amendment, Potting Mix, Seed Starting
Packaging Type
Bag
PH Level
0.0
Features
- Improves soil aeration and drainage
- Promotes vigorous root growth
- Lightweight and easy to handle
- Versatile for soil and hydroponics
- Ideal for seed starting
- Enhances potting mixes
- Acts as supplemental fertilizer
What customers say
Serious growers consistently praise the exceptional quality and precise sizing of this vermiculite. The medium coarse Grade 3 or 3A is ideal for achieving optimal soil aeration and moisture management, essential for successful propagation. Users appreciate the clean material, noting its lack of excessive dust, which is vital for seed starting. This reliability, coupled with its excellent bulk value, makes it a dependable choice for amending large batches of potting mix. Horticultural enthusiasts highly recommend this vermiculite as a staple for their gardening needs.
Know before you buy
This medium/coarse grade is specifically designed to improve soil aeration and drainage. By creating air pockets in your growing medium, it helps prevent soil compaction and allows roots to access the oxygen they need for vigorous growth.
Yes, this product is suitable for soil-less hydroponic applications. Its structure provides excellent support for root systems while helping to manage moisture and nutrient distribution.
No, this vermiculite has a neutral pH of 0.0, meaning it will not alter the acidity or alkalinity of your soil. It is a chemically inert amendment that provides physical benefits without disrupting your existing nutrient balance.
Absolutely. The medium/coarse texture is ideal for seed starting because it retains enough moisture to keep seeds hydrated while remaining light enough to allow delicate new roots to penetrate the medium easily.
A 4 cubic foot bag is a substantial volume, typically enough to amend several large containers or a significant portion of a raised bed. It is best used as a component in a mix rather than as a standalone growing medium.
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$45