Grodan Macroplugs 1.5-in Plugs - Pre-Cut Side Slit - Bagged

Easy Clone Insertion and Steady Moisture - 1.5-in Round Plugs

Pushing cuttings into solid media can damage stems and slow your work. These stonewool plugs have a pre-cut side slit, so each cutting seats easily. The structure supports aeration and consistent moisture retention during root development.

The 1.5-in round format suits growers who propagate regularly and want plugs that fit Grodan block holes for the move to the next stage of cultivation.

Key Features & Benefits

• Pre-cut side slit — lets you insert a cutting without forcing it.
• Stonewool material — holds moisture while keeping air in the media.
• Fits Grodan block holes — simplifies transplanting from propagation to the next stage.
• Round 1.5-in plug — gives a consistent, uniform format across a propagation run.
• Bagged — keeps plugs together until you use them.

Who Should Use Grodan Macroplugs

Home gardeners and licensed commercial growers who start plants from cuttings and want a uniform plug that transfers into Grodan blocks.

About Grodan Macroplugs

Grodan Macroplugs are round stonewool plugs designed for cloning and propagation. They measure 1.5 in round and are sold bagged with a pre-cut side slit.

Frequently Asked Questions

Q: What is the slit for?
A: The pre-cut side slit gives you an opening for a cutting. You insert the clone without cutting the plug yourself.

Q: What are these plugs made of?
A: They are made of stonewool. The material holds moisture while keeping air in the media.

Q: Will they fit my blocks?
A: They are designed to fit Grodan block holes. Check your block hole size before ordering if you use another system.

Q: What does aeration mean for propagation?
A: Aeration is the air held in the media around the roots. Good air content supports root development alongside moisture.

Q: How does stonewool compare with loose media?
A: Stonewool plugs keep a fixed shape and a uniform structure. Loose media can vary more from one container to the next.