Top 10 Best Grodan Rockwool Cubes

Made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums. Twin Canaries Chart included with every order.

Made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums. Twin Canaries Chart included with every order.

Grodan A-OK Rockwool starter plugs are perfect for starting seeds or for rooting clone cuttings. Has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Supports the requirement of the plant in the different plant stages. Once your seedlings have a good rooting structure and are looking strong now is the time for transplanting as the rooting cube will be full of vigorous roots.. 5 THCity Stakes included in every order.

Each Block is 4 x 4 x 4 with a hole at the top. Gro-block holes are the perfect size for any 1.5 Starter plug or macroplug. Plants can be fully grown in these gro-blocks. The bases of the gro-blocks are grooved to promote drainage and to avoid wet feet. Comes with Twin Canaries Liquid Volume Conversion Chart.

Root cuttings, clone plants, start seeds and more. Includes 100 individual rockwool stonewool grow cubes. Perfectly-sized to fit a standard flat growing tray. Packaged in bulk to save you money. Predrilled planting holes make seeding and plant propagation a breeze.

Made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums. Twin Canaries Chart included with every order.

An inorganic and sterile growing medium made from spun molten rock. A superior medium for rooting cuttings. Provides 20 air space when saturated. Does not contain nutrients. Condition by soaking for eight hours.

Improved homogeneity. Optimum robustness and flexibility. Ideal airwater balance. Consistent shape of the seed hole. Identically shaped plugs, Root development through the entire plug.