Grodan Delta 10 Block w/hole, 4x4x4″ – Single

Grodan Delta 10 Block Specifications

The Grodan Delta 10 Block is a 4×4×4-inch rockwool growing block sold as a single unit. It is manufactured under the Hydrofarm brand and categorized under Rockwool / Starter Plugs within the Growing Media & Containers product line. The block includes a pre-formed hole to accept seedlings or cuttings.

Why Choose the Grodan Delta 10 Block

The Grodan Delta 10 Block is a 4×4×4-inch rockwool cube distributed by Hydrofarm. Based on the product title and its classification in the Rockwool / Starter Plugs subcategory, the following characteristics can be stated:

• Pre-formed hole in the block simplifies the placement of seedlings or rooted cuttings without cutting or modifying the medium.
• The 4×4×4-inch format is a standard size suited for supporting plants through established vegetative growth stages in hydroponic systems.
• Rockwool is a mineral-based inert growing medium, meaning it does not contribute nutrients to the root zone and is compatible with a wide range of nutrient formulations.
• The single-unit format allows growers to purchase the exact quantity needed without committing to a case or strip quantity.
• Sold by Hydrofarm, a recognized distributor of horticultural products with established supply relationships across the indoor growing industry.

If you need a container for your growing media, see our selection of Smart Pot 3-gallon fabric pots or the Smart Pot 20-gallon fabric pot for larger plants.

Sources & Further Reading