Rockwool® Grodan® 1.5" Macroplugs™ - Plant Starters For Cuttings & Clones (50 Count)

Grodan plugs are known for their uniformity and reliability, providing predictable and even propagation and a high success rate. Every plug o ers uniform density, firmness and fibrous structure. The shape and firmness of the plugs make processing, whether manual or mechanical, significantly easier. This consistency allows for balanced distribution of water and nutrients, which has a beneficial e ect on rooting in and initial crop development.

• Trusted Grodan 1.5" Macro Plugs made from premium spun rockwool
• Macro plugs have a slit that allows for easy insertion of a cutting or bare-root plant.
• Great for Seed Starting, Plant Propagation, Root Cuttings & Cloning
• Packaged in bulk to save you money!
• Can be easily inserted into larger rockwool cubes or slabs once roots develop
• Grodan Gro-Smart tray™ is specifically designed for these plugs. For perfect results each time, use with Gro-Smart trays.
• Big round plug, ideal for cuttings or crops needing a longer germination stage
• The bigger plug, will provide sufficient volume for initial root development

About Rockwool Mineral Fibers Inert Medium For Soilless Growing

Stonewool Macroplugs are a sure bet for optimum germination. They start as basalt rock and chalk that is melted, spun into cotton candy-like fibers, and finally compressed into plugs. Their fibrous structure creates an ideal air-to-water ratio which contributes to robust root development throughout the entire plug. If you're ready to experience phenomenal growth with premium rockwool - the Grodan Macro Plugs are your gateway to better growing.

Top 4 Benefits of Using Rockwool Starter Plugs

1. Uniform emergence and plant quality - Grodan plugs have a highly uniform fiber structure and firmness, guaranteeing excellent distribution of water and nutrients and promoting fast, uniform germination and root development. With this high-quality plug, differences within and between batches of plants are smaller than ever. More uniform seedlings result in accelerated plant development, enabling faster harvesting.

1. Improved air/water ratio - The unique fiber structure ensures an optimum air/water ratio and exceptional water and nutrient distribution. Thanks to the fast absorption of water, the plug’s fibers become completely saturated when irrigated for the first time. The large pores allow for a permanent supply of fresh air and promote fast root development throughout the entire plug.
2. Good firmness and stability - Grodan plugs are firm and maintain their shape during handling, and constitute a stable basis during rooting and the seedling initial development. They can be handled easily by hand during transplanting. This durability minimizes the risk of damage to the roots, enhancing uniformity and limiting losses.
3. Efficient use of water and nutrients - The plugs’ steerability allows for greater control of the water content and the uniform fiber structure ensures consistent distribution and fast absorption when irrigating. That means less watering for you, and more efficient use of the water and nutrients, resulting in a more sustainable propagation process and lower costs.

Specifications

Grodan plugs are designed for fast, uniform propagation of cannabis cuttings and seedlings, resulting in maximum plant quality and easy handling.

• Loose, round plugs that fit perfectly into the Grodan Gro-Block hole
• Slit to insert clones
• Ideal plug for cannabis clones
• Macroplug 36/40 - 1.5"round*1.57"high
• 50 plugs/package
• 1750 plugs/carton

More Information

Grodan Starter Plugs are designed for starting seedlings and rooting stem cuttings. The finely woven stone wool in the Starter Plug provides the perfect environment for young roots.

• Grodan plugs have excellent uniformity, strength and shape that provides the perfect basis for optimum germination and uniform seedling results.
• The uniformity and reliability of Grodan plugs provide a solid basis for automatic or manual processing, uniform germination and a crop that can be transplanted successfully.
• Grodan plugs have a uniform density, firmness and fibrous structure. This means that distribution of water, nutrients and pH-value is also uniform, which has a beneficial effect on germination results.

Want more information? Download the Grodan Propagation Technical Bulletin