Search  for anything...

1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small)

  • Based on 4,052 reviews
Condition: New
Checking for the best price...
$9.63 Why this price?
Save $90.36 was $99.99

Buy Now, Pay Later


As low as $2 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Aug 30
Order within 20 hours and 2 minutes
Available payment plans shown during checkout

Size: Small


Features

  • Inorganic & Sterile Growing Medium, great for Rooting Cuttings clone plants, germination start seeds and more. Encourages Faster Initial Rooting & Its Firmness Is Guaranteed
  • Much easier than starting in soil! Predrilled planting holes make seeding and plant propagation a breeze. Great for hobby and commecial growers
  • Provides 20% Air Space When Saturated - Absorbs nutrient solution while retaining plenty of oxygen for rapid root growth!
  • Made from good selection of natural rocks, neutral pH and sterile. Cubes Measure:1.5" x 1.5" x 1.5"
  • SELLER WARRANTY - Any support you need please email us via your order page, we'll respond to your request within 24 hours, and we promise 100% fund back if you do not like it, WHY NOT HAVE A TRY?

Description

SPECIFICATIONS Size: 1.5”W x 1.5”D x 1.5”H Quantity: 28cubes Package: 1 Sheet ADVANTAGE Firm: hold their shape well and do not fall apart Breathable: retaining plenty of oxygen for rapid plant growth Aseptic production: Inorganic and sterile growing medium better than soil Water & nutrient retention: retains a lot of water and nutrient solution Suitable for hobby or commercial growers WARM TIPS 1.Wear gloves/glasses while handling 2.Don't try to tear the product - cut it Please Note : To Soak , simply dig plug briefly (10 sec) in a starter solution adjusted to pH 5.5 using pH down either or a lemon ,Do not squeeze the plug How to transplant rock wool block Once the you see about 0.5-1" of root growth below the plug, it is time to transplant. They can go straight into the big rockwool hole, as they do not have any wrapping on them. Your best bet is to transplant the starter plug into a 3" or 4" . WHY? It is much easier to control the moisture level in a 3"-4" than a larger block. Just wait until the block feels really light before you water. Smaller blocks like these will keep an even moisture level in the entire block. Rule of thumb: water 15 minutes before the block goes dry. If you transplant into bigger blocks: It is essential to keep the upper part of the block moist by misting or watering sparingly.


Brand: MI0512


Item Form: plant_seed


Coverage: Medium


Product Dimensions: 11.8 x 6.69 x 1.65 inches


Item Weight: 4.9 ounces


Manufacturer: MI0512


Country of Origin: China


Item model number: 56


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Aug 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Always a great to use a dirt free rock wool slab of cubes!
Size: Small
1 1/2 " rockwool cubes for my gardening needs are just the thing for starting seeds and/or cuttings! You work with them wet to keep the dust in check especially if you are cutting them apart. They are perfect for the tiny squares starter tray I'm using at this time. These come in a slab, you, depending on your needs may prefer to use as a slab, I'm separating mine for my project and am totally happy to have these on hand. They perform well as any rockwool should, holds and nurtures your seedlings/cuttings until they are ready for next level advancement, onto another slab if you wish or set atop other substrate to continue growth, whatever your method, just take the cube and your offspring and move them right along. Great to use, inhibits other soil related problems, so yes, love them! Happy Growing! ... show more
Reviewed in the United States on October 12, 2023 by Spacey

  • Shipping was great
Size: Small
Shipping came early, thanks product always been great
Reviewed in the United States on October 16, 2023 by Paul Richey

  • If you are sensitive to fiberglass USE GLOVES!
Size: Small
I planted several of these with my son and they left shards in both of our skin for about a week just like touching Fiberglass. Very painful. If you are sensitive to fiberglass please wear gloves.
Reviewed in the United States on July 7, 2023 by itsnaptimesomewhere

  • Seem okay, a lot were damaged.
Size: Small
Out of the whole pack I had about 1/3 of them damaged and unusable. The ones in good condition worked great. I'd use these again. I'm sure the delivery team is responsible for the damage for the most part. I'm giving 3 stars because of how easily they ripped up.
Reviewed in the United States on September 18, 2023 by Keith Jackson

  • Works
Size: Small
Works as expected
Reviewed in the United States on July 10, 2023 by KC

  • Okay product
Size: Small
Doesn’t pull apart easily, and tends to fall apart when wetting before inserting seeds. I’ll be looking for another product.
Reviewed in the United States on April 18, 2023 by Amazon Customer

  • Amazing for water plants and aquatic containers
Size: Small
I don’t know why people don’t like this stuff! I hoped to also use for seedlings but really works great for aquatic containers. And who cares if it breaks apart? It squished together and then stays put. It’s amazing stuff really and easily reused!
Reviewed in the United States on July 7, 2023 by Jess

  • They did the job
Size: Small
/I thought they were just a little expensive for what they were but they did the job.
Reviewed in the United States on April 14, 2023 by Kathleen Grover

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...