Grodan A-OK Starter Plugs 1.5 in | Case of 30 Sheets, 2,940

What the A-OK Starter Plugs Case Actually Holds

Thirty sheets, ninety eight plugs each. That is 2,940 stonewool plugs at 1.5 by 1.5 in, sold loose in the case rather than shrink wrapped individually. A sheet drops straight into a standard 10 by 20 flat, so nothing has to be cut down to fit.

Preparing Grodan Starter Plugs Before You Sow

Stonewool is alkaline as it comes out of the sheet. Soak the sheet in pH adjusted water before anything goes into it. Otherwise the first week fights you on nutrient availability rather than on the plant. Once conditioned, the plug does one job well. The V shaped profile keeps roots from tangling across neighbours, so plugs separate cleanly when you block on into a larger cube. Material is stonewool, spun from molten rock and compressed, which is why it holds air and water in the ratio a young root wants. These are the PRO A-OK plugs, the working alternative to going straight into a Gro-Block. The case format is what makes them pay at volume.

Key Features

• 2,940 plugs in the case: Thirty sheets at 98 plugs each, loose in the box rather than shrink wrapped.
• 1.5 x 1.5 in stonewool: Spun from molten rock and compressed, holding air and water together.
• Fits a 10 by 20 flat: A sheet drops straight in, so nothing needs cutting or trimming.
• V shaped profile: Roots stay in their own plug, so sheets separate cleanly at blocking on.
• Soak before sowing: Stonewool is alkaline as made. Condition the sheet in pH adjusted water.
• Blocks on to a Gro-Block: The step between a seed or cutting and a larger stonewool cube.

Technical Specifications