--- product_id: 7142374 title: "49 Rockwool Grow Cubes (1.5 Inches) - Growing Medium Starter Sheets (49 Per Pack)" brand: "stacky cubes" price: "€ 72.24" currency: EUR in_stock: true category: "Stacky Cubes" url: https://www.desertcart.be/products/7142374-49-rockwool-grow-cubes-1-5-inches-growing-medium-starter store_origin: BE region: Belgium --- # 20% air space for oxygen-rich roots Superior water retention with nutrient absorption 1.5" cubic size for uniform growth 49 Rockwool Grow Cubes (1.5 Inches) - Growing Medium Starter Sheets (49 Per Pack) **Brand:** stacky cubes **Price:** € 72.24 **Availability:** ✅ In Stock ## Summary > 🌿 Grow smarter, not harder — root success starts here! ## Quick Answers - **What is this?** 49 Rockwool Grow Cubes (1.5 Inches) - Growing Medium Starter Sheets (49 Per Pack) by stacky cubes - **How much does it cost?** € 72.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/7142374-49-rockwool-grow-cubes-1-5-inches-growing-medium-starter) ## Best For - stacky cubes enthusiasts ## Why This Product - Trusted stacky cubes brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Firm Yet Flexible:** Guaranteed firmness supports roots while encouraging rapid expansion - • **Sterile & Inorganic:** Clean, disease-free medium for healthier cuttings every time - • **Precision-Sized Cubes:** Uniform 1.5" blocks for consistent, hassle-free propagation - • **Oxygen-Optimized Growth:** 20% air space ensures roots breathe easy and grow faster - • **Proven Industrial Quality:** Trusted by top global propagators for unbeatable root development ## Overview These 49 Rockwool Grow Cubes (1.5 inches) offer a sterile, inorganic growing medium designed to accelerate rooting with a perfect balance of air and water retention. Engineered with a 20% air space and a fiber structure that supports strong, healthy root systems, these cubes are trusted by leading industrial propagators worldwide. Ideal for professional and hobbyist growers seeking consistent, rapid plant propagation. ## Description The manufacturer has many years of experience developing Rockwool products in the Netherlands and is preferred by some of the largest industrial propagators in the world. The quality of their newest Rockwool cubes, plugs, and starter sheets is by far the best on the market with superb air to water ratio and a fiber structure that holds water longer and has less resistance for the roots to grow in, resulting in stronger roots. Rockwool also encourages faster initial rooting and its firmness is guaranteed. Blocks measure 1.5” x 1.5” x 1.5” ## Features - Inorganic & Sterile Growing Medium - A Superior Medium For Rooting Cuttings - Encourages Faster Initial Rooting & Its Firmness Is Guaranteed - Provides 20% Air Space When Saturated - Absorbs nutrient solution while retaining plenty of oxygen for rapid root growth! - Cubes Measure: 1.5" x 1.5" x 1.5" ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00IA8AJLO | | Best Sellers Rank | #360,359 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #545 in Plant Germination Kits | | Date First Available | February 6, 2014 | | Item Weight | 1.6 ounces | | Item model number | RW | | Manufacturer | YP Supplier | | Package Dimensions | 9.84 x 9.76 x 2.52 inches | ## Images ![49 Rockwool Grow Cubes (1.5 Inches) - Growing Medium Starter Sheets (49 Per Pack) - Image 1](https://m.media-amazon.com/images/I/41oFEweqwKL.jpg) ![49 Rockwool Grow Cubes (1.5 Inches) - Growing Medium Starter Sheets (49 Per Pack) - Image 2](https://m.media-amazon.com/images/I/51cXQiq+KkL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can you put seeds in the rockwool to start a plant? I am new to hydroponics? Thank you** A: Yes. That is it's purpose. Put the seed in the sidewall of the whole, pinch off a tiny piece of rockwool and cover the hole. Don't cram the piece into the hole. **Q: Still havnt received my order and i am unable to track it.** A: Yes you can track it. The email you supply when you ordered your item has the tracking number on it. The same email will let you know that them item is being shipped and it will also tell you when it's delivered. Tip: check your spam mail. **Q: Can these be used with the Ivation brand garden?** A: Yes, rockwool would be a medium you could use to plan seeds, then place in the net pot (basket) that comes with the system. You might have to cut them down (they are 1" x 1" x 1") to fit this brand. However I have found that General Hydroponics Rapid Rooter Replacement Plugs work better because they come with nutrients infused in the plugs to help start the seeds. But rockwool will also work. **Q: Has anyone used these in the Gardyn system?** A: I've used these in my Tower Garden for several years and they are perfect for this system. ## Frequently Bought Together - 49 Rockwool Grow Cubes (1.5 Inches) - Growing Medium Starter Sheets (49 Per Pack) - General Hydroponics pH Control Kit For A Balanced Nutrient Solution - HAZOULEN Small Garden Plastic Net Cups Pots Fits in 2 Inch Holes, Set of 40 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/7142374-49-rockwool-grow-cubes-1-5-inches-growing-medium-starter](https://www.desertcart.be/products/7142374-49-rockwool-grow-cubes-1-5-inches-growing-medium-starter) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-10-01*