Grodan
Commercial propagation requires bulk macroplugs with V-cut insertion slits. Grodan products start from €0.10 per unit.
Choose from bulk macroplugs and loose plugs. These are rockwool-based media suitable for hydroponic systems.
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Grodan 100x100x65 mm, pěstební kostka bez díry 1 ks 
Grodan 100x100x65 mm, pěstební kostka bez díry 1 ks
Grodan 100x100x65 mm, pěstební kostka bez díry 1 ks
Sale price €0,71 Regular price €0,79 -
Grodan 100x100x65 mm, pěstební kostka s malou dírou 27x40 mm, 1 ks -
Grodan 100x100x65 mm, pěstební kostka s dírou 42x40 mm, 1 ks
Shipping & Tracking. 3 day EU delivery
You'll get your package in 3-5 days no matter where you are in EU.
Cost is 7 to 15 EUR under 30kg.
We'll send you a tracking number as soon as your purchase dispatched.
You'll receive a notification on each stage of delivery
We use all the variety of shipping companies, if you have a prefered one - let us know, we'll send with it for your convinience.
See more on Shipping details page.
60 days returns
You can get a refund or replacement after up to 30 days from purchase.
But we ussualy stand on customers side, so we can give a 60 days time frame!
How to know right prodcut parameter?
See our free grow calculators for hydroponics and indoor gardening.
Estimate nutrients, lighting, VPD, irrigation, plant spacing, and grow planning.
2 months post sale expert support
It's free.
We are a team of 10 with a decade of wise expirience in growing and gardening, so if you'll have any need of help, we'll guide you to your goal within 2 months from a purchase.
About us. Our 9 year history
GoToGarden started in 2017 out of personal frustration. Our founder was a hobby grower who spent hours navigating online shops that felt built by people who had never touched a plant — cluttered layouts, vague product descriptions, no real guidance on what to actually buy or why. He knew there had to be a better way.
See more on About us page
Estimate nutrients, lighting, VPD, irrigation, plant spacing, grow planning.
Our free calculators for hydroponics and gardening.
Why Use Grodan Macroplugs for Commercial Propagation?
Commercial growers frequently face challenges with consistent seed germination and seedling rooting across large batches. Grodan MACROPLUG 36/40 V-CUT LOOSE váleček, BOX 2000 ks addresses this by providing an optimal environment for early-stage plant development, ensuring high success rates and uniformity. These macroplugs are engineered for rapid root initiation and development, crucial for maximizing yield and minimizing waste in high-volume operations.
Explore the Grodan Rockwool Range
Grodan offers a comprehensive range of rockwool products designed for various stages and systems. For growers starting with propagation, the individual Grodan MACROPLUG 36/40 V-CUT LOOSE váleček, BOX 2000 ks are ideal. For larger-scale operations and different growth phases, Grodan also provides larger propagation cubes and slabs. Growers can further explore specialized media like Kostky and Rohože within the Grodan family, each optimized for specific hydroponic applications and plant types.
Grodan vs. Other Rockwool Brands
Grodan is a specialist in inert, pre-formed rockwool substrates, distinguishing itself from brands that might offer a broader spectrum of grow media. Unlike soil-based or coco coir alternatives, Grodan's rockwool provides a sterile, pH-stable base for precise nutrient delivery and root zone management. This inert nature allows growers to have complete control over the nutrient solution, a key advantage for experienced cultivators aiming for maximum efficiency and yield.
Selecting the Right Grodan Medium
For growers focusing on seed germination and cloning, starting with a V-cut propagation plug like the Grodan MACROPLUG 36/40 V-CUT LOOSE váleček, BOX 2000 ks is recommended. These are designed for easy cutting insertion and rapid rooting. If the grower is transitioning to larger plants in hydroponic systems, they might then consider larger rockwool cubes or move to Rohože. For universal applications or specific plant needs, exploring options within the Kostky range provides tailored solutions for different cultivation strategies.
Frequently Asked Questions
What is the main benefit of Grodan macroplugs?
Grodan macroplugs offer bulk propagation solutions for commercial growers, featuring a slit for easy cutting insertion and promoting fast root initiation.
What growing media are Grodan products compatible with?
Grodan rockwool substrates are primarily used in hydroponic systems, offering a sterile and pH-stable medium for precise nutrient control.
Are Grodan macroplugs suitable for seedlings and clones?
Yes, the Grodan MACROPLUG 36/40 V-CUT LOOSE váleček is specifically designed for commercial propagation, making it ideal for seedlings and clones.