Best Tower Garden® Rock Fiber Plugs.

Rockwool for Growing

preferred by many propagators in the industry. The quality of the newest Rockwool cubes, plugs, and starter sheets is the best on the market with superb air to water ratio and a fiber structure that holds water longer and has less resistance for the roots to grow in, resulting in stronger roots. Rockwool also encourages faster initial rooting and its firmness is guaranteed. Each sheet of Deco2pro rockwool is perfectly-sized to fit a standard flat and each plug has a pre-formed hole to easily plant seeds and cuttings. Once rooted, gardeners can transfer individual cubes to larger pieces of stonewool or plant them directly in soil. Our rockwool Cubes come with a pre-made planting hole which easily allows you to place cuttings, seeds etc into the cubes for fast, easy rooting and sprouting. Once roots develop you can easily separate the cubes and transplant using whatever method you prefer.

Please Note :

To Soak , simply dig plug briefly (10 sec) in a starter solution adjusted to pH 5.5 using pH down either or a lemon ,Do not squeeze the plug .

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums. Grodan A’OK plugs are designed for seed and cutting propagation prior to “blocking on” into larger growing blocks. The V-shape design of the plug discourages tangling of roots between the plugs in the A’OK plug sheet. A’OK plugs come in a sheet that fits a standard 10×20 flat.

The manufacturer has many years of experience developing Rockwool products in the Netherlands and is preferred by some of the largest industrial propagators in the world. The quality of their newest Rockwool cubes, plugs, and starter sheets is by far the best on the market with superb air to water ratio and a fiber structure that holds water longer and has less resistance for the roots to grow in, resulting in stronger roots. Rockwool also encourages faster initial rooting and its firmness is guaranteed. Blocks measure 1.5” x 1.5” x 1.5”

The ao25/40 1 inch rockwool propagationes in a sheet of 200 cubes, which fits nicely into a standard 10″ x 20″ greenhouse flat. The rockwool cube settings are about 1-1/2″ in height, and almost 1 inch square. They aremonly used for starting lettuce and other leaf crops, and flowers.

​Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.

Starter MINI-BLOCKS can sit in a tray (flat) without support for easy starting of seeds and cuttings. They are individually wrapped to minimize algae growth. For best results put them on the flat side of the GRO-SMART Tray to ensure good airflow around the cubes. Remove wrapping and transplant into any loose media such as GROW-CUBES or GROW-CHUNKS, or leave wrapping on and set on top of a larger GRO-BLOCK. These cubes are popular for production of aquatic plants. The advantage MINI-BLOCKS have over A-Ok Starter Plugs and MACROPLUGS is that MINI-BLOCKS can sit in a tray without support.

​Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.

These Rockwool plant starting plugs feature a slit for easy insertion of rooted cuttings. Ideal for growers using aeroponic EZ clone machines. They fit perfectly into the holes of any standard Rockwool blocks, inserted into pebbles, or any other type of growing mediums.

Grodan Stone wool (Rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other Rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.