Grodan A-OK 1.5" Starter Plug, Sheet of 98

by Grodan

Product Features

• A superior medium for rooting cuttings
• Rockwool is an inorganic and sterile growing medium made from spun molten rock
• Provides 20% air space when saturated, and does not contain nutrients
• Condition by soaking for eight hours in pH 5.0-5.5 and then rinsing with pH 7.0 water
• Water daily

Product Details

• Item Weight: 1 pounds
• Shipping Weight: 1 pounds (View shipping rates and policies)
• ASIN: B00168EO48
• Average Customer Review: 4.0 out of 5 stars  See all reviews (11 customer reviews)
• Amazon Best Sellers Rank: #464 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • #3 in Patio, Lawn & Garden > Plants & Planting > Plant Germination Equipment > Growing Light Fixtures

Product Description

Each Grodan A-OK Starter Plug has a pre-formed hole to insure easy seed or cutting placement. Gardeners simply wait for plant roots to penetrate the bottom of each A-OK Starter Plug before transplanting them into a larger stonewool cube or block. Grodan stonewool is known for its quality, consistency and performance. This is a single sheet of 98, one-and-a-half-inch plugs.

Customer Reviews

Most Helpful Customer Reviews

6 of 6 people found the following review helpful:

5.0 out of 5 stars Rockwool Starter Plugs - 1.5 inch, 98 cubes, March 22, 2011

By 

Dave (Michigan) - See all my reviews

Amazon Verified Purchase

This review is from: Grodan A-OK 1.5" Starter Plug, Sheet of 98

I have used Rockwool starter cubes for years, both for seeds and cuttings in my hydroponics systems.
This is the first time using this generic brand but are the same as others I have purchased from local stores, except they are cheaper here.
As for instructions, do you really need them, If you don't know about rockwool then you should read up on it on the internet to make sure it fits your needs and purpose for the type of plants you plan to grow, there is almost as many variations of how to use this product as there are plants.

Rockwool is a trade name not a brand.

Breathing the dust of rockwool can be hazardous to your health

Also to answer another reviewers question, Rockwool is a fibrous material made from molten rock. It is NOT biodegradable but mishandled will crumble to a fine dust

Pros:
Cheap cost same quality as most name brands
Hole in middle to place seed or cutting.
Convenient cut or tear squares.

Cons:
None


[...]

6 of 6 people found the following review helpful:

4.0 out of 5 stars A-Ok plugs, December 30, 2010

By 

Solid Snake (right behind you) - See all my reviews

Amazon Verified Purchase

This review is from: Grodan A-OK 1.5" Starter Plug, Sheet of 98

Mine shipped without a bag, label or instructions but that doesn't really bug me too much. As other reviewers have noted, this is "economy" rockwool - it comes in a big sheet as pictured and you break the individual plugs off. This means they're a little rougher around the edges and a bit more powdery than the somewhat costlier rockwool products. If you're just looking for a good, cost effective rockwool then this will suffice.

5 of 5 people found the following review helpful:

5.0 out of 5 stars Best and most affordable method, February 12, 2011

By 

L. Gale (Oregon United States) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Grodan A-OK 1.5" Starter Plug, Sheet of 98

Just ordered a second set. These work just fine and as far as I can tell, are the least expensive.

I have tried the peat plugs, sponges, larger rock cubes, loose seeding soil.. and this product is just as good, better than some of the above and very easy.