is this TEKnically good for growing mushrooms?

It's good for growing shrooms as an ingredient for the PF TEK. Many folks at the Shroomery use it. Even Amazon shows you that people who buy this also buy Brown Rice Flour. Not a coincidence.

Is this fine or coarse grade? I need fine grade, specifically.

I consider it fine. The pieces are not uniform. I don't know if we measure fine grades the same way though so I can't in good conscious recommend the product to you specifically

Does it contain fertilizer?

No although it seems to be a mineral. It expands when wet and hold moisture, thus helping seeds to germinate and grow and apparently also helping cuttings to take root. I have not done cuttings in it yet, but plan to. I just transplanted a small plant today that I started from seed in a 2" pot and that plant has a long root. (Didn't have time to measure it, but maybe five inches.) You need to mix vermiculite with potting soil, of course. I mix perlite, vermiculite and potting soil. Fertilize according to what you are planting in it.

Why so expensive? I can buy the same exact stuff down the road from me for $3.99 for 8 quarts.

At what store? I like to buy Vermiculite in large quantities, I could really stock up if it's only $4 for 8 quarts!

Plantation 8qt Professional Grade Vermiculite Products

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🌿 Elevate your green space with professional-grade vermiculite!

HYDRATION HERO - Retains moisture to keep plants thriving longer
TRUSTED PROVEN - 4.6-star rating from over 4,400 happy gardeners
CUSTOM SOIL CREATOR - Easily blend with peat moss and perlite for your ideal soilless mix
SEED STARTERS SECRET - Perfect for starting seeds, propagating cuttings, and storing bulbs
BOOST YOUR GARDENS GROWTH - Loosens soil and improves aeration for healthier roots

Plantation 8QT Professional Grade Vermiculite is a top-rated soil conditioner designed to loosen soil, enhance aeration, and retain moisture. Ideal for seed starting, cuttings, and bulb storage, it blends seamlessly with peat moss and perlite to create custom soilless mixes. Trusted by thousands, this 8-quart bag delivers professional results for passionate gardeners.

Specifications

ASIN	B001693Y3Y
Brand	Plantation Products
Brand Name	Plantation Products
Customer Reviews	4.6 out of 5 stars 4,461 Reviews
Global Trade Identification Number	00023075062087, 00071605160024
Included Components	8QT Professional Grade Plantation Products Vermiculite
Item Type Name	8QT Professional Grade Plantation Products Vermiculite
Item Weight	0.89 Kilograms
Item weight	0.89 Kilograms
Manufacturer	Plantation Products
Manufacturer Part Number	16002
Manufacturer Warranty Description	Warranty
Model Number	16002
Style	Custom
Style Name	Custom
UPC	023075062087
Unit Count	256.0 Milliliters
Unit count	256.0 Milliliters
Volume	8 Quarts

Reviews

K**N

Fast Shipment & Excellent Product, Highly recommended

Fast Shipment & Excellent Product,Highly recommended.

29.07.2016

C**Y

Great value!

This bag is going to last forever! I used this to make my own starter mix and have had excellent results with growing my watermelon, pumpkin, tomato and lemon seeds! My recipe: Approx. A quarter pound spagnum moss, 1 brick of coco peat, 1 cup of vermiculite and 1.5 Tbs of garden lime (to neutralize acid levels of spagnum moss). I just mixed these all together and soaked the mixture until it was all damp before putting in the baskets. Some people use just the coco peat bricks and vermiculite, however the spagnum moss is cheaper.

1.07.2025

O**.

Good

Just what I needed for my indoor planting.

2.03.2023

A**C

Must have

Great addition to soil for starting seeds!

10.08.2026

C**V

Love it

Great stuff, it did what I wanted it to do and when I run out I probably will order it again

14.05.2014

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago